f(x)=(x-4)2-1

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Solution for f(x)=(x-4)2-1 equation: 


Simplifying
f(x) = (x + -4) * 2 + -1

Multiply f * x
fx = (x + -4) * 2 + -1

Reorder the terms:
fx = (-4 + x) * 2 + -1

Reorder the terms for easier multiplication:
fx = 2(-4 + x) + -1
fx = (-4 * 2 + x * 2) + -1
fx = (-8 + 2x) + -1

Reorder the terms:
fx = -8 + -1 + 2x

Combine like terms: -8 + -1 = -9
fx = -9 + 2x

Solving
fx = -9 + 2x

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -9x-1 + 2

Simplifying
f = -9x-1 + 2

Reorder the terms:
f = 2 + -9x-1

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