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Simplifying (a2 + -4a + 6) + (-3a + 13a + 1) = 0 Reorder the terms: (6 + -4a + a2) + (-3a + 13a + 1) = 0 Remove parenthesis around (6 + -4a + a2) 6 + -4a + a2 + (-3a + 13a + 1) = 0 Reorder the terms: 6 + -4a + a2 + (1 + -3a + 13a) = 0 Combine like terms: -3a + 13a = 10a 6 + -4a + a2 + (1 + 10a) = 0 Remove parenthesis around (1 + 10a) 6 + -4a + a2 + 1 + 10a = 0 Reorder the terms: 6 + 1 + -4a + 10a + a2 = 0 Combine like terms: 6 + 1 = 7 7 + -4a + 10a + a2 = 0 Combine like terms: -4a + 10a = 6a 7 + 6a + a2 = 0 Solving 7 + 6a + a2 = 0 Solving for variable 'a'. Begin completing the square. Move the constant term to the right: Add '-7' to each side of the equation. 7 + 6a + -7 + a2 = 0 + -7 Reorder the terms: 7 + -7 + 6a + a2 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 6a + a2 = 0 + -7 6a + a2 = 0 + -7 Combine like terms: 0 + -7 = -7 6a + a2 = -7 The a term is 6a. Take half its coefficient (3). Square it (9) and add it to both sides. Add '9' to each side of the equation. 6a + 9 + a2 = -7 + 9 Reorder the terms: 9 + 6a + a2 = -7 + 9 Combine like terms: -7 + 9 = 2 9 + 6a + a2 = 2 Factor a perfect square on the left side: (a + 3)(a + 3) = 2 Calculate the square root of the right side: 1.414213562 Break this problem into two subproblems by setting (a + 3) equal to 1.414213562 and -1.414213562.Subproblem 1
a + 3 = 1.414213562 Simplifying a + 3 = 1.414213562 Reorder the terms: 3 + a = 1.414213562 Solving 3 + a = 1.414213562 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + a = 1.414213562 + -3 Combine like terms: 3 + -3 = 0 0 + a = 1.414213562 + -3 a = 1.414213562 + -3 Combine like terms: 1.414213562 + -3 = -1.585786438 a = -1.585786438 Simplifying a = -1.585786438Subproblem 2
a + 3 = -1.414213562 Simplifying a + 3 = -1.414213562 Reorder the terms: 3 + a = -1.414213562 Solving 3 + a = -1.414213562 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + a = -1.414213562 + -3 Combine like terms: 3 + -3 = 0 0 + a = -1.414213562 + -3 a = -1.414213562 + -3 Combine like terms: -1.414213562 + -3 = -4.414213562 a = -4.414213562 Simplifying a = -4.414213562Solution
The solution to the problem is based on the solutions from the subproblems. a = {-1.585786438, -4.414213562}
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