1. Assignment:
1­­>L7.5, pg. 435­436, #2­20 (evens), #23­29 (odds), & #32­33 ­ Due
Thursday (2/16)
2­­>Checkpoint 7.1­7.2 ­ Due Thursday (2/16)
3­­>Test signed??
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2. Lesson 7.5 WarmUp:
For #1­2, evaluate and express the results in both
scientific notation and standard form.
1) (7.08 x 1014)(5 x 10­9)
2) 2.05 x 10­8
4 x 10­2
Simplify #3­5
3) y(y5)(y7)
4) (2m4k3)2(­3mk2)3
5) (­8u4z5)(5uz4)
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3. Lesson 7.5:
*Adding polynomials involves adding like terms...and you can group
the like terms by using either a horizontal or vertical format.
*Subtracting polynomials involves "adding the opposite" of each term
in the polynomial, and then using the process for adding polynomials.
**Write the polynomial solution in standard form:
(the terms are in order from greatest degree to least degree)
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4. Lesson 7.5 examples:
Find each sum or difference.
A) (2x2 + 5x ­ 7) + (3 ­ 4x2 + 6x)
horizontal­­>
vertical­­>
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5. B) (3y + y3 ­ 5) + (4y2 ­ 4y + 2y3 + 8)
horizontal­­>
vertical­­>
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6. C) (3 ­ 2x + 2x2) ­ (4x ­ 5 + 3x2)
horizontal­­>
vertical­­>
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7. D) (7p + 4p3 ­ 8) ­ (3p2 + 2 ­ 9p)
horizontal­­> Choose!!
vertical­­>
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