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

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


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

Reorder the terms for easier multiplication:
3f = x2 + 3x + -5

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

Solving
3f = -5 + 3x + x2

Solving for variable 'f'.

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

Divide each side by '3'.
f = -1.666666667 + x + 0.3333333333x2

Simplifying
f = -1.666666667 + x + 0.3333333333x2

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