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Simplifying 21a2b3 + 7a3b2 = 0 Solving 21a2b3 + 7a3b2 = 0 Solving for variable 'a'. Factor out the Greatest Common Factor (GCF), '7a2b2'. 7a2b2(3b + a) = 0 Ignore the factor 7.Subproblem 1
Set the factor 'a2b2' equal to zero and attempt to solve: Simplifying a2b2 = 0 Solving a2b2 = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a2b2 = 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 '(3b + a)' equal to zero and attempt to solve: Simplifying 3b + a = 0 Reorder the terms: a + 3b = 0 Solving a + 3b = 0 Move all terms containing a to the left, all other terms to the right. Add '-3b' to each side of the equation. a + 3b + -3b = 0 + -3b Combine like terms: 3b + -3b = 0 a + 0 = 0 + -3b a = 0 + -3b Remove the zero: a = -3b Simplifying a = -3bSolution
a = {-3b}
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