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Combine like terms. (-3y2 - 7y - 9) - (4y2 + 6y + 9) A. y2 - y B. -9y2 - 11y - 18 C. 7y2 + 13y + 18 D. -7y2 - 13y - 18
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1 vote
Combine like terms.

(-3y2 - 7y - 9) - (4y2 + 6y + 9)

A. y2 - y

B. -9y2 - 11y - 18

C. 7y2 + 13y + 18

D. -7y2 - 13y - 18

User SammyT
by
7.7k points

2 Answers

2 votes
(-3y2 - 7y - 9) - (4y2 + 6y + 9)


remove the parantheses

-3y^2 - 7y - 9 + 4y^2 + 6y + 9


combine like terms


y^2 - y


A is the correct answer. :)
User Andy Raddatz
by
8.2k points
2 votes
The answer is D.

-7y2 - 13 y - 18


User Greg Lever
by
8.1k points
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