f(5)=x^2-3x+8

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Solution for f(5)=x^2-3x+8 equation: 


Simplifying
f(5) = x2 + -3x + 8

Reorder the terms for easier multiplication:
5f = x2 + -3x + 8

Reorder the terms:
5f = 8 + -3x + x2

Solving
5f = 8 + -3x + x2

Solving for variable 'f'.

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

Divide each side by '5'.
f = 1.6 + -0.6x + 0.2x2

Simplifying
f = 1.6 + -0.6x + 0.2x2

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