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Simplifying 7ab2 + -9ab + 4a = 0 Reorder the terms: 4a + -9ab + 7ab2 = 0 Solving 4a + -9ab + 7ab2 = 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), 'a'. a(4 + -9b + 7b2) = 0Subproblem 1
Set the factor 'a' equal to zero and attempt to solve: Simplifying a = 0 Solving a = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a = 0Subproblem 2
Set the factor '(4 + -9b + 7b2)' equal to zero and attempt to solve: Simplifying 4 + -9b + 7b2 = 0 Solving 4 + -9b + 7b2 = 0 Move all terms containing a to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -9b + -4 + 7b2 = 0 + -4 Reorder the terms: 4 + -4 + -9b + 7b2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -9b + 7b2 = 0 + -4 -9b + 7b2 = 0 + -4 Combine like terms: 0 + -4 = -4 -9b + 7b2 = -4 Add '9b' to each side of the equation. -9b + 9b + 7b2 = -4 + 9b Combine like terms: -9b + 9b = 0 0 + 7b2 = -4 + 9b 7b2 = -4 + 9b Add '-7b2' to each side of the equation. 7b2 + -7b2 = -4 + 9b + -7b2 Combine like terms: 7b2 + -7b2 = 0 0 = -4 + 9b + -7b2 Simplifying 0 = -4 + 9b + -7b2 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.Solution
a = {0}
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