f(x)=6x-9+x(7x-5)

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Solution for f(x)=6x-9+x(7x-5) equation:


Simplifying
f(x) = 6x + -9 + x(7x + -5)

Multiply f * x
fx = 6x + -9 + x(7x + -5)

Reorder the terms:
fx = 6x + -9 + x(-5 + 7x)
fx = 6x + -9 + (-5 * x + 7x * x)
fx = 6x + -9 + (-5x + 7x2)

Reorder the terms:
fx = -9 + 6x + -5x + 7x2

Combine like terms: 6x + -5x = 1x
fx = -9 + 1x + 7x2

Solving
fx = -9 + 1x + 7x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -9x-1 + 1 + 7x

Simplifying
f = -9x-1 + 1 + 7x

Reorder the terms:
f = 1 + -9x-1 + 7x

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