F(x)=-2(x+9)(x-1)

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Solution for F(x)=-2(x+9)(x-1) equation: 


Simplifying
F(x) = -2(x + 9)(x + -1)

Multiply F * x
xF = -2(x + 9)(x + -1)

Reorder the terms:
xF = -2(9 + x)(x + -1)

Reorder the terms:
xF = -2(9 + x)(-1 + x)

Multiply (9 + x) * (-1 + x)
xF = -2(9(-1 + x) + x(-1 + x))
xF = -2((-1 * 9 + x * 9) + x(-1 + x))
xF = -2((-9 + 9x) + x(-1 + x))
xF = -2(-9 + 9x + (-1 * x + x * x))
xF = -2(-9 + 9x + (-1x + x2))

Combine like terms: 9x + -1x = 8x
xF = -2(-9 + 8x + x2)
xF = (-9 * -2 + 8x * -2 + x2 * -2)
xF = (18 + -16x + -2x2)

Solving
xF = 18 + -16x + -2x2

Solving for variable 'x'.

Reorder the terms:
-18 + 16x + xF + 2x2 = 18 + -16x + -2x2 + -18 + 16x + 2x2

Reorder the terms:
-18 + 16x + xF + 2x2 = 18 + -18 + -16x + 16x + -2x2 + 2x2

Combine like terms: 18 + -18 = 0
-18 + 16x + xF + 2x2 = 0 + -16x + 16x + -2x2 + 2x2
-18 + 16x + xF + 2x2 = -16x + 16x + -2x2 + 2x2

Combine like terms: -16x + 16x = 0
-18 + 16x + xF + 2x2 = 0 + -2x2 + 2x2
-18 + 16x + xF + 2x2 = -2x2 + 2x2

Combine like terms: -2x2 + 2x2 = 0
-18 + 16x + xF + 2x2 = 0

The solution to this equation could not be determined.

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