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polet [3.4K]
2 years ago
10

Perform the operation (9x^2+6x-7)+(-9x-5)

Mathematics
1 answer:
asambeis [7]2 years ago
8 0

Answer:

9x^{2}-3x-12

9x^{2}+6x-7-9x-5

(Group liked terms)

9x^{2}+6x-9x-7-5

( subtract the numbers ) -7-5= -12

9x^{2}+6x-9x-12

( add similar elements ) 6x-9x=-3x

9x^{2}-3x-12

Step-by-step explanation:

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