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Simplifying a2 + -2a + -10 = 0 Reorder the terms: -10 + -2a + a2 = 0 Solving -10 + -2a + a2 = 0 Solving for variable 'a'. Begin completing the square. Move the constant term to the right: Add '10' to each side of the equation. -10 + -2a + 10 + a2 = 0 + 10 Reorder the terms: -10 + 10 + -2a + a2 = 0 + 10 Combine like terms: -10 + 10 = 0 0 + -2a + a2 = 0 + 10 -2a + a2 = 0 + 10 Combine like terms: 0 + 10 = 10 -2a + a2 = 10 The a term is -2a. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2a + 1 + a2 = 10 + 1 Reorder the terms: 1 + -2a + a2 = 10 + 1 Combine like terms: 10 + 1 = 11 1 + -2a + a2 = 11 Factor a perfect square on the left side: (a + -1)(a + -1) = 11 Calculate the square root of the right side: 3.31662479 Break this problem into two subproblems by setting (a + -1) equal to 3.31662479 and -3.31662479.Subproblem 1
a + -1 = 3.31662479 Simplifying a + -1 = 3.31662479 Reorder the terms: -1 + a = 3.31662479 Solving -1 + a = 3.31662479 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + a = 3.31662479 + 1 Combine like terms: -1 + 1 = 0 0 + a = 3.31662479 + 1 a = 3.31662479 + 1 Combine like terms: 3.31662479 + 1 = 4.31662479 a = 4.31662479 Simplifying a = 4.31662479Subproblem 2
a + -1 = -3.31662479 Simplifying a + -1 = -3.31662479 Reorder the terms: -1 + a = -3.31662479 Solving -1 + a = -3.31662479 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + a = -3.31662479 + 1 Combine like terms: -1 + 1 = 0 0 + a = -3.31662479 + 1 a = -3.31662479 + 1 Combine like terms: -3.31662479 + 1 = -2.31662479 a = -2.31662479 Simplifying a = -2.31662479Solution
The solution to the problem is based on the solutions from the subproblems. a = {4.31662479, -2.31662479}
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