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Simplifying (10 + -2x)(10 + -2x) * x = 72 Reorder the terms for easier multiplication: x(10 + -2x)(10 + -2x) = 72 Multiply (10 + -2x) * (10 + -2x) x(10(10 + -2x) + -2x * (10 + -2x)) = 72 x((10 * 10 + -2x * 10) + -2x * (10 + -2x)) = 72 x((100 + -20x) + -2x * (10 + -2x)) = 72 x(100 + -20x + (10 * -2x + -2x * -2x)) = 72 x(100 + -20x + (-20x + 4x2)) = 72 Combine like terms: -20x + -20x = -40x x(100 + -40x + 4x2) = 72 (100 * x + -40x * x + 4x2 * x) = 72 (100x + -40x2 + 4x3) = 72 Solving 100x + -40x2 + 4x3 = 72 Solving for variable 'x'. Reorder the terms: -72 + 100x + -40x2 + 4x3 = 72 + -72 Combine like terms: 72 + -72 = 0 -72 + 100x + -40x2 + 4x3 = 0 Factor out the Greatest Common Factor (GCF), '4'. 4(-18 + 25x + -10x2 + x3) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(-18 + 25x + -10x2 + x3)' equal to zero and attempt to solve: Simplifying -18 + 25x + -10x2 + x3 = 0 Solving -18 + 25x + -10x2 + 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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