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Simplifying (20 + -2x)(40 + -2x)(x) = 784 Reorder the terms for easier multiplication: x(20 + -2x)(40 + -2x) = 784 Multiply (20 + -2x) * (40 + -2x) x(20(40 + -2x) + -2x * (40 + -2x)) = 784 x((40 * 20 + -2x * 20) + -2x * (40 + -2x)) = 784 x((800 + -40x) + -2x * (40 + -2x)) = 784 x(800 + -40x + (40 * -2x + -2x * -2x)) = 784 x(800 + -40x + (-80x + 4x2)) = 784 Combine like terms: -40x + -80x = -120x x(800 + -120x + 4x2) = 784 (800 * x + -120x * x + 4x2 * x) = 784 (800x + -120x2 + 4x3) = 784 Solving 800x + -120x2 + 4x3 = 784 Solving for variable 'x'. Reorder the terms: -784 + 800x + -120x2 + 4x3 = 784 + -784 Combine like terms: 784 + -784 = 0 -784 + 800x + -120x2 + 4x3 = 0 Factor out the Greatest Common Factor (GCF), '4'. 4(-196 + 200x + -30x2 + x3) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(-196 + 200x + -30x2 + x3)' equal to zero and attempt to solve: Simplifying -196 + 200x + -30x2 + x3 = 0 Solving -196 + 200x + -30x2 + 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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