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Simplifying 8a2 + -6a + -3 = 0 Reorder the terms: -3 + -6a + 8a2 = 0 Solving -3 + -6a + 8a2 = 0 Solving for variable 'a'. Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. -0.375 + -0.75a + a2 = 0 Move the constant term to the right: Add '0.375' to each side of the equation. -0.375 + -0.75a + 0.375 + a2 = 0 + 0.375 Reorder the terms: -0.375 + 0.375 + -0.75a + a2 = 0 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + -0.75a + a2 = 0 + 0.375 -0.75a + a2 = 0 + 0.375 Combine like terms: 0 + 0.375 = 0.375 -0.75a + a2 = 0.375 The a term is -0.75a. Take half its coefficient (-0.375). Square it (0.140625) and add it to both sides. Add '0.140625' to each side of the equation. -0.75a + 0.140625 + a2 = 0.375 + 0.140625 Reorder the terms: 0.140625 + -0.75a + a2 = 0.375 + 0.140625 Combine like terms: 0.375 + 0.140625 = 0.515625 0.140625 + -0.75a + a2 = 0.515625 Factor a perfect square on the left side: (a + -0.375)(a + -0.375) = 0.515625 Calculate the square root of the right side: 0.718070331 Break this problem into two subproblems by setting (a + -0.375) equal to 0.718070331 and -0.718070331.Subproblem 1
a + -0.375 = 0.718070331 Simplifying a + -0.375 = 0.718070331 Reorder the terms: -0.375 + a = 0.718070331 Solving -0.375 + a = 0.718070331 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + a = 0.718070331 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + a = 0.718070331 + 0.375 a = 0.718070331 + 0.375 Combine like terms: 0.718070331 + 0.375 = 1.093070331 a = 1.093070331 Simplifying a = 1.093070331Subproblem 2
a + -0.375 = -0.718070331 Simplifying a + -0.375 = -0.718070331 Reorder the terms: -0.375 + a = -0.718070331 Solving -0.375 + a = -0.718070331 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + a = -0.718070331 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + a = -0.718070331 + 0.375 a = -0.718070331 + 0.375 Combine like terms: -0.718070331 + 0.375 = -0.343070331 a = -0.343070331 Simplifying a = -0.343070331Solution
The solution to the problem is based on the solutions from the subproblems. a = {1.093070331, -0.343070331}
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