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Simplifying (18 + -2x)(20 + -2x)(x) = 512 Reorder the terms for easier multiplication: x(18 + -2x)(20 + -2x) = 512 Multiply (18 + -2x) * (20 + -2x) x(18(20 + -2x) + -2x * (20 + -2x)) = 512 x((20 * 18 + -2x * 18) + -2x * (20 + -2x)) = 512 x((360 + -36x) + -2x * (20 + -2x)) = 512 x(360 + -36x + (20 * -2x + -2x * -2x)) = 512 x(360 + -36x + (-40x + 4x2)) = 512 Combine like terms: -36x + -40x = -76x x(360 + -76x + 4x2) = 512 (360 * x + -76x * x + 4x2 * x) = 512 (360x + -76x2 + 4x3) = 512 Solving 360x + -76x2 + 4x3 = 512 Solving for variable 'x'. Reorder the terms: -512 + 360x + -76x2 + 4x3 = 512 + -512 Combine like terms: 512 + -512 = 0 -512 + 360x + -76x2 + 4x3 = 0 Factor out the Greatest Common Factor (GCF), '4'. 4(-128 + 90x + -19x2 + x3) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(-128 + 90x + -19x2 + x3)' equal to zero and attempt to solve: Simplifying -128 + 90x + -19x2 + x3 = 0 Solving -128 + 90x + -19x2 + x3 = 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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