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

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


Simplifying
f(x) = 2x2 + 7x

Multiply f * x
fx = 2x2 + 7x

Reorder the terms:
fx = 7x + 2x2

Solving
fx = 7x + 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 = 7 + 2x

Simplifying
f = 7 + 2x

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