f(x)=(4x^2+5x)

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Solution for f(x)=(4x^2+5x) equation: 


Simplifying
f(x) = (4x2 + 5x)

Multiply f * x
fx = (4x2 + 5x)

Reorder the terms:
fx = (5x + 4x2)

Remove parenthesis around (5x + 4x2)
fx = 5x + 4x2

Solving
fx = 5x + 4x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 5 + 4x

Simplifying
f = 5 + 4x

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