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Simplifying 640 = x(18 + -2x)(24 + -2x) Multiply (18 + -2x) * (24 + -2x) 640 = x(18(24 + -2x) + -2x * (24 + -2x)) 640 = x((24 * 18 + -2x * 18) + -2x * (24 + -2x)) 640 = x((432 + -36x) + -2x * (24 + -2x)) 640 = x(432 + -36x + (24 * -2x + -2x * -2x)) 640 = x(432 + -36x + (-48x + 4x2)) Combine like terms: -36x + -48x = -84x 640 = x(432 + -84x + 4x2) 640 = (432 * x + -84x * x + 4x2 * x) 640 = (432x + -84x2 + 4x3) Solving 640 = 432x + -84x2 + 4x3 Solving for variable 'x'. Reorder the terms: 640 + -432x + 84x2 + -4x3 = 432x + -432x + -84x2 + 84x2 + 4x3 + -4x3 Combine like terms: 432x + -432x = 0 640 + -432x + 84x2 + -4x3 = 0 + -84x2 + 84x2 + 4x3 + -4x3 640 + -432x + 84x2 + -4x3 = -84x2 + 84x2 + 4x3 + -4x3 Combine like terms: -84x2 + 84x2 = 0 640 + -432x + 84x2 + -4x3 = 0 + 4x3 + -4x3 640 + -432x + 84x2 + -4x3 = 4x3 + -4x3 Combine like terms: 4x3 + -4x3 = 0 640 + -432x + 84x2 + -4x3 = 0 Factor out the Greatest Common Factor (GCF), '4'. 4(160 + -108x + 21x2 + -1x3) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(160 + -108x + 21x2 + -1x3)' equal to zero and attempt to solve: Simplifying 160 + -108x + 21x2 + -1x3 = 0 Solving 160 + -108x + 21x2 + -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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