f(x)=10x+1+x(-9x+3)

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Solution for f(x)=10x+1+x(-9x+3) equation: 


Simplifying
f(x) = 10x + 1 + x(-9x + 3)

Multiply f * x
fx = 10x + 1 + x(-9x + 3)

Reorder the terms:
fx = 10x + 1 + x(3 + -9x)
fx = 10x + 1 + (3 * x + -9x * x)
fx = 10x + 1 + (3x + -9x2)

Reorder the terms:
fx = 1 + 10x + 3x + -9x2

Combine like terms: 10x + 3x = 13x
fx = 1 + 13x + -9x2

Solving
fx = 1 + 13x + -9x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = x-1 + 13 + -9x

Simplifying
f = x-1 + 13 + -9x

Reorder the terms:
f = 13 + x-1 + -9x

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