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Simplifying (a + 3b)(3a + -6b) = 0 Multiply (a + 3b) * (3a + -6b) (a(3a + -6b) + 3b * (3a + -6b)) = 0 ((3a * a + -6b * a) + 3b * (3a + -6b)) = 0 Reorder the terms: ((-6ab + 3a2) + 3b * (3a + -6b)) = 0 ((-6ab + 3a2) + 3b * (3a + -6b)) = 0 (-6ab + 3a2 + (3a * 3b + -6b * 3b)) = 0 (-6ab + 3a2 + (9ab + -18b2)) = 0 Reorder the terms: (-6ab + 9ab + 3a2 + -18b2) = 0 Combine like terms: -6ab + 9ab = 3ab (3ab + 3a2 + -18b2) = 0 Solving 3ab + 3a2 + -18b2 = 0 Solving for variable 'a'. Factor out the Greatest Common Factor (GCF), '3'. 3(ab + a2 + -6b2) = 0 Factor a trinomial. 3((a + -2b)(a + 3b)) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(a + -2b)' equal to zero and attempt to solve: Simplifying a + -2b = 0 Solving a + -2b = 0 Move all terms containing a to the left, all other terms to the right. Add '2b' to each side of the equation. a + -2b + 2b = 0 + 2b Combine like terms: -2b + 2b = 0 a + 0 = 0 + 2b a = 0 + 2b Remove the zero: a = 2b Simplifying a = 2bSubproblem 2
Set the factor '(a + 3b)' equal to zero and attempt to solve: Simplifying 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 = {2b, -3b}
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