f(x)=(8x-2)(3x+9)

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Solution for f(x)=(8x-2)(3x+9) equation: 


Simplifying
f(x) = (8x + -2)(3x + 9)

Multiply f * x
fx = (8x + -2)(3x + 9)

Reorder the terms:
fx = (-2 + 8x)(3x + 9)

Reorder the terms:
fx = (-2 + 8x)(9 + 3x)

Multiply (-2 + 8x) * (9 + 3x)
fx = (-2(9 + 3x) + 8x * (9 + 3x))
fx = ((9 * -2 + 3x * -2) + 8x * (9 + 3x))
fx = ((-18 + -6x) + 8x * (9 + 3x))
fx = (-18 + -6x + (9 * 8x + 3x * 8x))
fx = (-18 + -6x + (72x + 24x2))

Combine like terms: -6x + 72x = 66x
fx = (-18 + 66x + 24x2)

Solving
fx = -18 + 66x + 24x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -18x-1 + 66 + 24x

Simplifying
f = -18x-1 + 66 + 24x

Reorder the terms:
f = 66 + -18x-1 + 24x

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