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