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Simplifying 21a5 + 28a3 = 0 Reorder the terms: 28a3 + 21a5 = 0 Solving 28a3 + 21a5 = 0 Solving for variable 'a'. Factor out the Greatest Common Factor (GCF), '7a3'. 7a3(4 + 3a2) = 0 Ignore the factor 7.Subproblem 1
Set the factor 'a3' equal to zero and attempt to solve: Simplifying a3 = 0 Solving a3 = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a3 = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.Subproblem 2
Set the factor '(4 + 3a2)' equal to zero and attempt to solve: Simplifying 4 + 3a2 = 0 Solving 4 + 3a2 = 0 Move all terms containing a to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 3a2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 3a2 = 0 + -4 3a2 = 0 + -4 Combine like terms: 0 + -4 = -4 3a2 = -4 Divide each side by '3'. a2 = -1.333333333 Simplifying a2 = -1.333333333 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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