f(-1)f(x)=x^2-2x-7

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Solution for f(-1)f(x)=x^2-2x-7 equation: 


Simplifying
f(-1) * f(x) = x2 + -2x + -7

Reorder the terms for easier multiplication:
-1f * f * x = x2 + -2x + -7

Multiply f * f
-1f2 * x = x2 + -2x + -7

Multiply f2 * x
-1f2x = x2 + -2x + -7

Reorder the terms:
-1f2x = -7 + -2x + x2

Solving
-1f2x = -7 + -2x + x2

Solving for variable 'f'.

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

Divide each side by '-1x'.
f2 = 7x-1 + 2 + -1x

Simplifying
f2 = 7x-1 + 2 + -1x

Reorder the terms:
f2 = 2 + 7x-1 + -1x

Reorder the terms:
-2 + f2 + -7x-1 + x = 2 + 7x-1 + -1x + -2 + -7x-1 + x

Reorder the terms:
-2 + f2 + -7x-1 + x = 2 + -2 + 7x-1 + -7x-1 + -1x + x

Combine like terms: 2 + -2 = 0
-2 + f2 + -7x-1 + x = 0 + 7x-1 + -7x-1 + -1x + x
-2 + f2 + -7x-1 + x = 7x-1 + -7x-1 + -1x + x

Combine like terms: 7x-1 + -7x-1 = 0
-2 + f2 + -7x-1 + x = 0 + -1x + x
-2 + f2 + -7x-1 + x = -1x + x

Combine like terms: -1x + x = 0
-2 + f2 + -7x-1 + x = 0

The solution to this equation could not be determined.

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