f(x)=3x^2+5x-3

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Solution for f(x)=3x^2+5x-3 equation: 


Simplifying
f(x) = 3x2 + 5x + -3

Multiply f * x
fx = 3x2 + 5x + -3

Reorder the terms:
fx = -3 + 5x + 3x2

Solving
fx = -3 + 5x + 3x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -3x-1 + 5 + 3x

Simplifying
f = -3x-1 + 5 + 3x

Reorder the terms:
f = 5 + -3x-1 + 3x

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