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Simplifying 320 = x(20 + -2x)(14 + -2x) Multiply (20 + -2x) * (14 + -2x) 320 = x(20(14 + -2x) + -2x * (14 + -2x)) 320 = x((14 * 20 + -2x * 20) + -2x * (14 + -2x)) 320 = x((280 + -40x) + -2x * (14 + -2x)) 320 = x(280 + -40x + (14 * -2x + -2x * -2x)) 320 = x(280 + -40x + (-28x + 4x2)) Combine like terms: -40x + -28x = -68x 320 = x(280 + -68x + 4x2) 320 = (280 * x + -68x * x + 4x2 * x) 320 = (280x + -68x2 + 4x3) Solving 320 = 280x + -68x2 + 4x3 Solving for variable 'x'. Reorder the terms: 320 + -280x + 68x2 + -4x3 = 280x + -280x + -68x2 + 68x2 + 4x3 + -4x3 Combine like terms: 280x + -280x = 0 320 + -280x + 68x2 + -4x3 = 0 + -68x2 + 68x2 + 4x3 + -4x3 320 + -280x + 68x2 + -4x3 = -68x2 + 68x2 + 4x3 + -4x3 Combine like terms: -68x2 + 68x2 = 0 320 + -280x + 68x2 + -4x3 = 0 + 4x3 + -4x3 320 + -280x + 68x2 + -4x3 = 4x3 + -4x3 Combine like terms: 4x3 + -4x3 = 0 320 + -280x + 68x2 + -4x3 = 0 Factor out the Greatest Common Factor (GCF), '4'. 4(80 + -70x + 17x2 + -1x3) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(80 + -70x + 17x2 + -1x3)' equal to zero and attempt to solve: Simplifying 80 + -70x + 17x2 + -1x3 = 0 Solving 80 + -70x + 17x2 + -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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