f(x)=-.02x^2+.9x

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Solution for f(x)=-.02x^2+.9x equation: 


Simplifying
f(x) = -0.02x2 + 0.9x

Multiply f * x
fx = -0.02x2 + 0.9x

Reorder the terms:
fx = 0.9x + -0.02x2

Solving
fx = 0.9x + -0.02x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 0.9 + -0.02x

Simplifying
f = 0.9 + -0.02x

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