F(-4)=(-4)(-4)-8(-4)+9

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Solution for F(-4)=(-4)(-4)-8(-4)+9 equation: 


Simplifying
F(-4) = (-4)(-4) + -8(-4) + 9

Reorder the terms for easier multiplication:
-4F = (-4)(-4) + -8(-4) + 9

Multiply -4 * -4
-4F = 16 + -8(-4) + 9

Multiply -8 * -4
-4F = 16 + 32 + 9

Combine like terms: 16 + 32 = 48
-4F = 48 + 9

Combine like terms: 48 + 9 = 57
-4F = 57

Solving
-4F = 57

Solving for variable 'F'.

Move all terms containing F to the left, all other terms to the right.

Divide each side by '-4'.
F = -14.25

Simplifying
F = -14.25

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