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Simplifying 21x3 + 56x + 21 = 0 Reorder the terms: 21 + 56x + 21x3 = 0 Solving 21 + 56x + 21x3 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '7'. 7(3 + 8x + 3x3) = 0 Ignore the factor 7.Subproblem 1
Set the factor '(3 + 8x + 3x3)' equal to zero and attempt to solve: Simplifying 3 + 8x + 3x3 = 0 Solving 3 + 8x + 3x3 = 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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