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Simplifying 0 = x4 + x2 + 18x + 90 Reorder the terms: 0 = 90 + 18x + x2 + x4 Solving 0 = 90 + 18x + x2 + x4 Solving for variable 'x'. Combine like terms: 0 + -90 = -90 -90 + -18x + -1x2 + -1x4 = 90 + 18x + x2 + x4 + -90 + -18x + -1x2 + -1x4 Reorder the terms: -90 + -18x + -1x2 + -1x4 = 90 + -90 + 18x + -18x + x2 + -1x2 + x4 + -1x4 Combine like terms: 90 + -90 = 0 -90 + -18x + -1x2 + -1x4 = 0 + 18x + -18x + x2 + -1x2 + x4 + -1x4 -90 + -18x + -1x2 + -1x4 = 18x + -18x + x2 + -1x2 + x4 + -1x4 Combine like terms: 18x + -18x = 0 -90 + -18x + -1x2 + -1x4 = 0 + x2 + -1x2 + x4 + -1x4 -90 + -18x + -1x2 + -1x4 = x2 + -1x2 + x4 + -1x4 Combine like terms: x2 + -1x2 = 0 -90 + -18x + -1x2 + -1x4 = 0 + x4 + -1x4 -90 + -18x + -1x2 + -1x4 = x4 + -1x4 Combine like terms: x4 + -1x4 = 0 -90 + -18x + -1x2 + -1x4 = 0 Factor out the Greatest Common Factor (GCF), '-1'. -1(90 + 18x + x2 + x4) = 0 Ignore the factor -1.Subproblem 1
Set the factor '(90 + 18x + x2 + x4)' equal to zero and attempt to solve: Simplifying 90 + 18x + x2 + x4 = 0 Solving 90 + 18x + x2 + x4 = 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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