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 = 7
fx = 7 + 2x

Solving
fx = 7 + 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 = 7x-1 + 2

Simplifying
f = 7x-1 + 2

Reorder the terms:
f = 2 + 7x-1

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