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Simplifying 15ab2 + -21ab = 0 Reorder the terms: -21ab + 15ab2 = 0 Solving -21ab + 15ab2 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Factor out the Greatest Common Factor (GCF), '3ab'. 3ab(-7 + 5b) = 0 Ignore the factor 3.Subproblem 1
Set the factor 'ab' equal to zero and attempt to solve: Simplifying ab = 0 Solving ab = 0 Move all terms containing a to the left, all other terms to the right. Simplifying ab = 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 '(-7 + 5b)' equal to zero and attempt to solve: Simplifying -7 + 5b = 0 Solving -7 + 5b = 0 Move all terms containing a to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + 5b = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 5b = 0 + 7 5b = 0 + 7 Combine like terms: 0 + 7 = 7 5b = 7 Add '-5b' to each side of the equation. 5b + -5b = 7 + -5b Combine like terms: 5b + -5b = 0 0 = 7 + -5b Simplifying 0 = 7 + -5b 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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