f(x)=x^2-3x^2-72x-4

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Solution for f(x)=x^2-3x^2-72x-4 equation: 


Simplifying
f(x) = x2 + -3x2 + -72x + -4

Multiply f * x
fx = x2 + -3x2 + -72x + -4

Reorder the terms:
fx = -4 + -72x + x2 + -3x2

Combine like terms: x2 + -3x2 = -2x2
fx = -4 + -72x + -2x2

Solving
fx = -4 + -72x + -2x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -4x-1 + -72 + -2x

Simplifying
f = -4x-1 + -72 + -2x

Reorder the terms:
f = -72 + -4x-1 + -2x

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