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Simplifying 90 = 2x(2x2 + -5x + -9) Reorder the terms: 90 = 2x(-9 + -5x + 2x2) 90 = (-9 * 2x + -5x * 2x + 2x2 * 2x) 90 = (-18x + -10x2 + 4x3) Solving 90 = -18x + -10x2 + 4x3 Solving for variable 'x'. Reorder the terms: 90 + 18x + 10x2 + -4x3 = -18x + 18x + -10x2 + 10x2 + 4x3 + -4x3 Combine like terms: -18x + 18x = 0 90 + 18x + 10x2 + -4x3 = 0 + -10x2 + 10x2 + 4x3 + -4x3 90 + 18x + 10x2 + -4x3 = -10x2 + 10x2 + 4x3 + -4x3 Combine like terms: -10x2 + 10x2 = 0 90 + 18x + 10x2 + -4x3 = 0 + 4x3 + -4x3 90 + 18x + 10x2 + -4x3 = 4x3 + -4x3 Combine like terms: 4x3 + -4x3 = 0 90 + 18x + 10x2 + -4x3 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(45 + 9x + 5x2 + -2x3) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(45 + 9x + 5x2 + -2x3)' equal to zero and attempt to solve: Simplifying 45 + 9x + 5x2 + -2x3 = 0 Solving 45 + 9x + 5x2 + -2x3 = 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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