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Simplifying 56a2 + 121a + 63 = 0 Reorder the terms: 63 + 121a + 56a2 = 0 Solving 63 + 121a + 56a2 = 0 Solving for variable 'a'. Factor a trinomial. (9 + 7a)(7 + 8a) = 0Subproblem 1
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 = -1.285714286Subproblem 2
Set the factor '(7 + 8a)' equal to zero and attempt to solve: Simplifying 7 + 8a = 0 Solving 7 + 8a = 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 + 8a = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 8a = 0 + -7 8a = 0 + -7 Combine like terms: 0 + -7 = -7 8a = -7 Divide each side by '8'. a = -0.875 Simplifying a = -0.875Solution
a = {-1.285714286, -0.875}
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