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Simplifying 1 + -8a + a2 = 0 Solving 1 + -8a + a2 = 0 Solving for variable 'a'. Begin completing the square. Move the constant term to the right: Add '-1' to each side of the equation. 1 + -8a + -1 + a2 = 0 + -1 Reorder the terms: 1 + -1 + -8a + a2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -8a + a2 = 0 + -1 -8a + a2 = 0 + -1 Combine like terms: 0 + -1 = -1 -8a + a2 = -1 The a term is -8a. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8a + 16 + a2 = -1 + 16 Reorder the terms: 16 + -8a + a2 = -1 + 16 Combine like terms: -1 + 16 = 15 16 + -8a + a2 = 15 Factor a perfect square on the left side: (a + -4)(a + -4) = 15 Calculate the square root of the right side: 3.872983346 Break this problem into two subproblems by setting (a + -4) equal to 3.872983346 and -3.872983346.Subproblem 1
a + -4 = 3.872983346 Simplifying a + -4 = 3.872983346 Reorder the terms: -4 + a = 3.872983346 Solving -4 + a = 3.872983346 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + a = 3.872983346 + 4 Combine like terms: -4 + 4 = 0 0 + a = 3.872983346 + 4 a = 3.872983346 + 4 Combine like terms: 3.872983346 + 4 = 7.872983346 a = 7.872983346 Simplifying a = 7.872983346Subproblem 2
a + -4 = -3.872983346 Simplifying a + -4 = -3.872983346 Reorder the terms: -4 + a = -3.872983346 Solving -4 + a = -3.872983346 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + a = -3.872983346 + 4 Combine like terms: -4 + 4 = 0 0 + a = -3.872983346 + 4 a = -3.872983346 + 4 Combine like terms: -3.872983346 + 4 = 0.127016654 a = 0.127016654 Simplifying a = 0.127016654Solution
The solution to the problem is based on the solutions from the subproblems. a = {7.872983346, 0.127016654}
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