f(x)=18x^2-x^4

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Solution for f(x)=18x^2-x^4 equation: 


Simplifying
f(x) = 18x2 + -1x4

Multiply f * x
fx = 18x2 + -1x4

Solving
fx = 18x2 + -1x4

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 18x + -1x3

Simplifying
f = 18x + -1x3

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