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Equations Reducible To Quadratics
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
  6 2 0m m  
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
  6 2 0m m  
6 or 2m m  
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
  6 2 0m m  
6 or 2m m  
2 2
6 or 2x x  
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
  6 2 0m m  
6 or 2m m  
2 2
6 or 2x x  
6x  
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
  6 2 0m m  
6 or 2m m  
2 2
6 or 2x x  
6x   no real solutions
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
  6 2 0m m  
6 or 2m m  
2 2
6 or 2x x  
6x   no real solutions
6x  
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
  6 2 0m m  
6 or 2m m  
2 2
6 or 2x x  
6x   no real solutions
6x  
 ( ) 9 4 3 3 0x x
ii   
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
  6 2 0m m  
6 or 2m m  
2 2
6 or 2x x  
6x   no real solutions
6x  
 ( ) 9 4 3 3 0x x
ii   
let 3x
m 
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
  6 2 0m m  
6 or 2m m  
2 2
6 or 2x x  
6x   no real solutions
6x  
 ( ) 9 4 3 3 0x x
ii   
let 3x
m 
   
22 2 2
3 3 3 9
xx x x
m    
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
  6 2 0m m  
6 or 2m m  
2 2
6 or 2x x  
6x   no real solutions
6x  
 ( ) 9 4 3 3 0x x
ii   
let 3x
m 
   
22 2 2
3 3 3 9
xx x x
m    
2
4 3 0m m  
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
  6 2 0m m  
6 or 2m m  
2 2
6 or 2x x  
6x   no real solutions
6x  
 ( ) 9 4 3 3 0x x
ii   
let 3x
m 
   
22 2 2
3 3 3 9
xx x x
m    
2
4 3 0m m  
  3 1 0m m  
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
  6 2 0m m  
6 or 2m m  
2 2
6 or 2x x  
6x   no real solutions
6x  
 ( ) 9 4 3 3 0x x
ii   
let 3x
m 
   
22 2 2
3 3 3 9
xx x x
m    
2
4 3 0m m  
  3 1 0m m  
3 or 1m m 
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
  6 2 0m m  
6 or 2m m  
2 2
6 or 2x x  
6x   no real solutions
6x  
 ( ) 9 4 3 3 0x x
ii   
let 3x
m 
   
22 2 2
3 3 3 9
xx x x
m    
2
4 3 0m m  
  3 1 0m m  
3 or 1m m 
3 3 or 3 1x x
 
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
  6 2 0m m  
6 or 2m m  
2 2
6 or 2x x  
6x   no real solutions
6x  
 ( ) 9 4 3 3 0x x
ii   
let 3x
m 
   
22 2 2
3 3 3 9
xx x x
m    
2
4 3 0m m  
  3 1 0m m  
3 or 1m m 
3 3 or 3 1x x
 
1x 
Equations Reducible To Quadratics
4 2
e.g. ( ) 4 12 0i x x  
2
let m x
2 4
m x
2
4 12 0m m  
  6 2 0m m  
6 or 2m m  
2 2
6 or 2x x  
6x   no real solutions
6x  
 ( ) 9 4 3 3 0x x
ii   
let 3x
m 
   
22 2 2
3 3 3 9
xx x x
m    
2
4 3 0m m  
  3 1 0m m  
3 or 1m m 
3 3 or 3 1x x
 
1x  or 0x 
Exercise 8D; 1, 2ad, 3b, 4ab, 5ac, 6a, 8abi, 9a*

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11 x1 t01 02 binomial products (2014)11 x1 t01 02 binomial products (2014)
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12 x1 t02 01 differentiating exponentials (2014)
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11 x1 t01 01 algebra & indices (2014)
11 x1 t01 01 algebra & indices (2014)11 x1 t01 01 algebra & indices (2014)
11 x1 t01 01 algebra & indices (2014)
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12 x1 t01 03 integrating derivative on function (2013)12 x1 t01 03 integrating derivative on function (2013)
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12 x1 t01 02 differentiating logs (2013)
12 x1 t01 02 differentiating logs (2013)12 x1 t01 02 differentiating logs (2013)
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12 x1 t01 01 log laws (2013)
12 x1 t01 01 log laws (2013)12 x1 t01 01 log laws (2013)
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X2 t02 04 forming polynomials (2013)
X2 t02 04 forming polynomials (2013)X2 t02 04 forming polynomials (2013)
X2 t02 04 forming polynomials (2013)
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X2 t02 03 roots & coefficients (2013)
X2 t02 03 roots & coefficients (2013)X2 t02 03 roots & coefficients (2013)
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X2 t02 02 multiple roots (2013)
X2 t02 02 multiple roots (2013)X2 t02 02 multiple roots (2013)
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X2 t02 01 factorising complex expressions (2013)
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11 x1 t16 06 derivative times function (2013)
11 x1 t16 06 derivative times function (2013)11 x1 t16 06 derivative times function (2013)
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11 x1 t16 05 volumes (2013)
11 x1 t16 05 volumes (2013)11 x1 t16 05 volumes (2013)
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11 x1 t16 04 areas (2013)
11 x1 t16 04 areas (2013)11 x1 t16 04 areas (2013)
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11 x1 t16 03 indefinite integral (2013)11 x1 t16 03 indefinite integral (2013)
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11 x1 t16 02 definite integral (2013)11 x1 t16 02 definite integral (2013)
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Goodbye slideshare UPDATE
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12 x1 t01 02 differentiating logs (2013)
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12 x1 t01 01 log laws (2013)
12 x1 t01 01 log laws (2013)12 x1 t01 01 log laws (2013)
12 x1 t01 01 log laws (2013)
 
X2 t02 04 forming polynomials (2013)
X2 t02 04 forming polynomials (2013)X2 t02 04 forming polynomials (2013)
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X2 t02 03 roots & coefficients (2013)
X2 t02 03 roots & coefficients (2013)X2 t02 03 roots & coefficients (2013)
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X2 t02 02 multiple roots (2013)
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X2 t02 01 factorising complex expressions (2013)
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11 x1 t16 05 volumes (2013)11 x1 t16 05 volumes (2013)
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11 x1 t10 03 equations reducible to quadratics (2013)

  • 2. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x  
  • 3. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x
  • 4. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x
  • 5. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m  
  • 6. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m     6 2 0m m  
  • 7. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m     6 2 0m m   6 or 2m m  
  • 8. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m     6 2 0m m   6 or 2m m   2 2 6 or 2x x  
  • 9. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m     6 2 0m m   6 or 2m m   2 2 6 or 2x x   6x  
  • 10. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m     6 2 0m m   6 or 2m m   2 2 6 or 2x x   6x   no real solutions
  • 11. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m     6 2 0m m   6 or 2m m   2 2 6 or 2x x   6x   no real solutions 6x  
  • 12. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m     6 2 0m m   6 or 2m m   2 2 6 or 2x x   6x   no real solutions 6x    ( ) 9 4 3 3 0x x ii   
  • 13. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m     6 2 0m m   6 or 2m m   2 2 6 or 2x x   6x   no real solutions 6x    ( ) 9 4 3 3 0x x ii    let 3x m 
  • 14. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m     6 2 0m m   6 or 2m m   2 2 6 or 2x x   6x   no real solutions 6x    ( ) 9 4 3 3 0x x ii    let 3x m      22 2 2 3 3 3 9 xx x x m    
  • 15. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m     6 2 0m m   6 or 2m m   2 2 6 or 2x x   6x   no real solutions 6x    ( ) 9 4 3 3 0x x ii    let 3x m      22 2 2 3 3 3 9 xx x x m     2 4 3 0m m  
  • 16. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m     6 2 0m m   6 or 2m m   2 2 6 or 2x x   6x   no real solutions 6x    ( ) 9 4 3 3 0x x ii    let 3x m      22 2 2 3 3 3 9 xx x x m     2 4 3 0m m     3 1 0m m  
  • 17. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m     6 2 0m m   6 or 2m m   2 2 6 or 2x x   6x   no real solutions 6x    ( ) 9 4 3 3 0x x ii    let 3x m      22 2 2 3 3 3 9 xx x x m     2 4 3 0m m     3 1 0m m   3 or 1m m 
  • 18. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m     6 2 0m m   6 or 2m m   2 2 6 or 2x x   6x   no real solutions 6x    ( ) 9 4 3 3 0x x ii    let 3x m      22 2 2 3 3 3 9 xx x x m     2 4 3 0m m     3 1 0m m   3 or 1m m  3 3 or 3 1x x  
  • 19. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m     6 2 0m m   6 or 2m m   2 2 6 or 2x x   6x   no real solutions 6x    ( ) 9 4 3 3 0x x ii    let 3x m      22 2 2 3 3 3 9 xx x x m     2 4 3 0m m     3 1 0m m   3 or 1m m  3 3 or 3 1x x   1x 
  • 20. Equations Reducible To Quadratics 4 2 e.g. ( ) 4 12 0i x x   2 let m x 2 4 m x 2 4 12 0m m     6 2 0m m   6 or 2m m   2 2 6 or 2x x   6x   no real solutions 6x    ( ) 9 4 3 3 0x x ii    let 3x m      22 2 2 3 3 3 9 xx x x m     2 4 3 0m m     3 1 0m m   3 or 1m m  3 3 or 3 1x x   1x  or 0x 
  • 21. Exercise 8D; 1, 2ad, 3b, 4ab, 5ac, 6a, 8abi, 9a*