18=(8-2x)(5-2x)x

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Solution for 18=(8-2x)(5-2x)x equation:


Simplifying
18 = (8 + -2x)(5 + -2x) * x

Reorder the terms for easier multiplication:
18 = x(8 + -2x)(5 + -2x)

Multiply (8 + -2x) * (5 + -2x)
18 = x(8(5 + -2x) + -2x * (5 + -2x))
18 = x((5 * 8 + -2x * 8) + -2x * (5 + -2x))
18 = x((40 + -16x) + -2x * (5 + -2x))
18 = x(40 + -16x + (5 * -2x + -2x * -2x))
18 = x(40 + -16x + (-10x + 4x2))

Combine like terms: -16x + -10x = -26x
18 = x(40 + -26x + 4x2)
18 = (40 * x + -26x * x + 4x2 * x)
18 = (40x + -26x2 + 4x3)

Solving
18 = 40x + -26x2 + 4x3

Solving for variable 'x'.

Reorder the terms:
18 + -40x + 26x2 + -4x3 = 40x + -40x + -26x2 + 26x2 + 4x3 + -4x3

Combine like terms: 40x + -40x = 0
18 + -40x + 26x2 + -4x3 = 0 + -26x2 + 26x2 + 4x3 + -4x3
18 + -40x + 26x2 + -4x3 = -26x2 + 26x2 + 4x3 + -4x3

Combine like terms: -26x2 + 26x2 = 0
18 + -40x + 26x2 + -4x3 = 0 + 4x3 + -4x3
18 + -40x + 26x2 + -4x3 = 4x3 + -4x3

Combine like terms: 4x3 + -4x3 = 0
18 + -40x + 26x2 + -4x3 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(9 + -20x + 13x2 + -2x3) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(9 + -20x + 13x2 + -2x3)' equal to zero and attempt to solve: Simplifying 9 + -20x + 13x2 + -2x3 = 0 Solving 9 + -20x + 13x2 + -2x3 = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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