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Simplifying 196a2 + -168a + -108 = 0 Reorder the terms: -108 + -168a + 196a2 = 0 Solving -108 + -168a + 196a2 = 0 Solving for variable 'a'. Factor out the Greatest Common Factor (GCF), '4'. 4(-27 + -42a + 49a2) = 0 Factor a trinomial. 4((-3 + -7a)(9 + -7a)) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(-3 + -7a)' equal to zero and attempt to solve: Simplifying -3 + -7a = 0 Solving -3 + -7a = 0 Move all terms containing a to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -7a = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -7a = 0 + 3 -7a = 0 + 3 Combine like terms: 0 + 3 = 3 -7a = 3 Divide each side by '-7'. a = -0.4285714286 Simplifying a = -0.4285714286Subproblem 2
Set the factor '(9 + -7a)' equal to zero and attempt to solve: Simplifying 9 + -7a = 0 Solving 9 + -7a = 0 Move all terms containing a to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -7a = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -7a = 0 + -9 -7a = 0 + -9 Combine like terms: 0 + -9 = -9 -7a = -9 Divide each side by '-7'. a = 1.285714286 Simplifying a = 1.285714286Solution
a = {-0.4285714286, 1.285714286}
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