Question

Expand -f(9-2f)+4f(f-8)

Answer 1

Step-by-step explanation:

$- f(9 - 2f) + 4f(f - 8) \\ - 9f + {2f}^{2} + 4 {f}^{2} - 32f \\ - 41f + 6 {f}^{2}$

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