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Simplifying (x + 5) * 2 = (x + -4)(x + 4) Reorder the terms: (5 + x) * 2 = (x + -4)(x + 4) Reorder the terms for easier multiplication: 2(5 + x) = (x + -4)(x + 4) (5 * 2 + x * 2) = (x + -4)(x + 4) (10 + 2x) = (x + -4)(x + 4) Reorder the terms: 10 + 2x = (-4 + x)(x + 4) Reorder the terms: 10 + 2x = (-4 + x)(4 + x) Multiply (-4 + x) * (4 + x) 10 + 2x = (-4(4 + x) + x(4 + x)) 10 + 2x = ((4 * -4 + x * -4) + x(4 + x)) 10 + 2x = ((-16 + -4x) + x(4 + x)) 10 + 2x = (-16 + -4x + (4 * x + x * x)) 10 + 2x = (-16 + -4x + (4x + x2)) Combine like terms: -4x + 4x = 0 10 + 2x = (-16 + 0 + x2) 10 + 2x = (-16 + x2) Solving 10 + 2x = -16 + x2 Solving for variable 'x'. Reorder the terms: 10 + 16 + 2x + -1x2 = -16 + x2 + 16 + -1x2 Combine like terms: 10 + 16 = 26 26 + 2x + -1x2 = -16 + x2 + 16 + -1x2 Reorder the terms: 26 + 2x + -1x2 = -16 + 16 + x2 + -1x2 Combine like terms: -16 + 16 = 0 26 + 2x + -1x2 = 0 + x2 + -1x2 26 + 2x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 26 + 2x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -26 + -2x + x2 = 0 Move the constant term to the right: Add '26' to each side of the equation. -26 + -2x + 26 + x2 = 0 + 26 Reorder the terms: -26 + 26 + -2x + x2 = 0 + 26 Combine like terms: -26 + 26 = 0 0 + -2x + x2 = 0 + 26 -2x + x2 = 0 + 26 Combine like terms: 0 + 26 = 26 -2x + x2 = 26 The x term is -2x. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2x + 1 + x2 = 26 + 1 Reorder the terms: 1 + -2x + x2 = 26 + 1 Combine like terms: 26 + 1 = 27 1 + -2x + x2 = 27 Factor a perfect square on the left side: (x + -1)(x + -1) = 27 Calculate the square root of the right side: 5.196152423 Break this problem into two subproblems by setting (x + -1) equal to 5.196152423 and -5.196152423.Subproblem 1
x + -1 = 5.196152423 Simplifying x + -1 = 5.196152423 Reorder the terms: -1 + x = 5.196152423 Solving -1 + x = 5.196152423 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 5.196152423 + 1 Combine like terms: -1 + 1 = 0 0 + x = 5.196152423 + 1 x = 5.196152423 + 1 Combine like terms: 5.196152423 + 1 = 6.196152423 x = 6.196152423 Simplifying x = 6.196152423Subproblem 2
x + -1 = -5.196152423 Simplifying x + -1 = -5.196152423 Reorder the terms: -1 + x = -5.196152423 Solving -1 + x = -5.196152423 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -5.196152423 + 1 Combine like terms: -1 + 1 = 0 0 + x = -5.196152423 + 1 x = -5.196152423 + 1 Combine like terms: -5.196152423 + 1 = -4.196152423 x = -4.196152423 Simplifying x = -4.196152423Solution
The solution to the problem is based on the solutions from the subproblems. x = {6.196152423, -4.196152423}
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