f(x)=x^2+4x^2+x-7

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Solution for f(x)=x^2+4x^2+x-7 equation:


Simplifying
f(x) = x2 + 4x2 + x + -7

Multiply f * x
fx = x2 + 4x2 + x + -7

Reorder the terms:
fx = -7 + x + x2 + 4x2

Combine like terms: x2 + 4x2 = 5x2
fx = -7 + x + 5x2

Solving
fx = -7 + x + 5x2

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 + 1 + 5x

Simplifying
f = -7x-1 + 1 + 5x

Reorder the terms:
f = 1 + -7x-1 + 5x

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