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Simplifying (x + -1)(2x)(x + -4) = 40 Reorder the terms: (-1 + x)(2x)(x + -4) = 40 Remove parenthesis around (2x) (-1 + x) * 2x(x + -4) = 40 Reorder the terms: (-1 + x) * 2x(-4 + x) = 40 Reorder the terms for easier multiplication: 2x(-1 + x)(-4 + x) = 40 Multiply (-1 + x) * (-4 + x) 2x(-1(-4 + x) + x(-4 + x)) = 40 2x((-4 * -1 + x * -1) + x(-4 + x)) = 40 2x((4 + -1x) + x(-4 + x)) = 40 2x(4 + -1x + (-4 * x + x * x)) = 40 2x(4 + -1x + (-4x + x2)) = 40 Combine like terms: -1x + -4x = -5x 2x(4 + -5x + x2) = 40 (4 * 2x + -5x * 2x + x2 * 2x) = 40 (8x + -10x2 + 2x3) = 40 Solving 8x + -10x2 + 2x3 = 40 Solving for variable 'x'. Reorder the terms: -40 + 8x + -10x2 + 2x3 = 40 + -40 Combine like terms: 40 + -40 = 0 -40 + 8x + -10x2 + 2x3 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-20 + 4x + -5x2 + x3) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-20 + 4x + -5x2 + x3)' equal to zero and attempt to solve: Simplifying -20 + 4x + -5x2 + x3 = 0 Solving -20 + 4x + -5x2 + 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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