8f(x)+4f(-x)=3x^2-4x^2

Simple and best practice solution for 8f(x)+4f(-x)=3x^2-4x^2 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

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Solution for 8f(x)+4f(-x)=3x^2-4x^2 equation: 


Simplifying
8f(x) + 4f(-1x) = 3x2 + -4x2

Multiply f * x
8fx + 4f(-1x) = 3x2 + -4x2

Remove parenthesis around (-1x)
8fx + 4f * -1x = 3x2 + -4x2

Reorder the terms for easier multiplication:
8fx + 4 * -1f * x = 3x2 + -4x2

Multiply 4 * -1
8fx + -4f * x = 3x2 + -4x2

Multiply f * x
8fx + -4fx = 3x2 + -4x2

Combine like terms: 8fx + -4fx = 4fx
4fx = 3x2 + -4x2

Combine like terms: 3x2 + -4x2 = -1x2
4fx = -1x2

Solving
4fx = -1x2

Solving for variable 'f'.

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

Divide each side by '4x'.
f = -0.25x

Simplifying
f = -0.25x

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