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OpenStudy (anonymous):
(-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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OpenStudy (anonymous):
Try removing the brackets first..
OpenStudy (anonymous):
For the left hand side there wont be any problem when you open the bracket, but be careful with the negative sign at the front of the second bracket
OpenStudy (anonymous):
have you got it?
OpenStudy (anonymous):
D.
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