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Simplifying 180 = x(x + 9)(x + -4) Reorder the terms: 180 = x(9 + x)(x + -4) Reorder the terms: 180 = x(9 + x)(-4 + x) Multiply (9 + x) * (-4 + x) 180 = x(9(-4 + x) + x(-4 + x)) 180 = x((-4 * 9 + x * 9) + x(-4 + x)) 180 = x((-36 + 9x) + x(-4 + x)) 180 = x(-36 + 9x + (-4 * x + x * x)) 180 = x(-36 + 9x + (-4x + x2)) Combine like terms: 9x + -4x = 5x 180 = x(-36 + 5x + x2) 180 = (-36 * x + 5x * x + x2 * x) 180 = (-36x + 5x2 + x3) Solving 180 = -36x + 5x2 + x3 Solving for variable 'x'. Reorder the terms: 180 + 36x + -5x2 + -1x3 = -36x + 36x + 5x2 + -5x2 + x3 + -1x3 Combine like terms: -36x + 36x = 0 180 + 36x + -5x2 + -1x3 = 0 + 5x2 + -5x2 + x3 + -1x3 180 + 36x + -5x2 + -1x3 = 5x2 + -5x2 + x3 + -1x3 Combine like terms: 5x2 + -5x2 = 0 180 + 36x + -5x2 + -1x3 = 0 + x3 + -1x3 180 + 36x + -5x2 + -1x3 = x3 + -1x3 Combine like terms: x3 + -1x3 = 0 180 + 36x + -5x2 + -1x3 = 0 The solution to this equation could not be determined.
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