Simplify: (-9x – 5) – (-9x^2 + x – 5)?
A. x(9x + 10)
B. -x(9x – 10)
C. -x(9x + 10)
D. x(9x – 10)
Answer: D. x(9x – 10)
Solution:
(-9x – 5) – (-9x^2 + x – 5)
= -9x – 5 + 9x^2 – x + 5
= 9x^2 – 9x – x – 5 + 5
= 9x^2 – 10x
= x(9x – 10)
The Answer is x(9x – 10).
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