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Alexandra [31]
3 years ago
9

Simplify: (-7x - 5) - (-9x2 + 8x + 7). Choose the standard form of the answer.

Mathematics
2 answers:
tankabanditka [31]3 years ago
7 0

Answer:

3x-12

Step-by-step explanation:

= -7x-5-(-9x * 2 + 8x +7)

= -7x-5-(-10x+7)

= -7x-5+10x-7

= 3x-12

Kryger [21]3 years ago
5 0

Answer:

-15x - 12 + 9x^2

Step-by-step explanation:

(-7x - 5) - (-9x^2 + 8x + 7)

-7x - 5 + 9x^2 - 8x -7

-15x - 12 +9x^2

what is that 2 by the 9x

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