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Simplifying (2x + 5) + -1(x + -6)(x) = 0 Reorder the terms: (5 + 2x) + -1(x + -6)(x) = 0 Remove parenthesis around (5 + 2x) 5 + 2x + -1(x + -6)(x) = 0 Reorder the terms: 5 + 2x + -1(-6 + x)(x) = 0 Reorder the terms for easier multiplication: 5 + 2x + -1x(-6 + x) = 0 5 + 2x + (-6 * -1x + x * -1x) = 0 5 + 2x + (6x + -1x2) = 0 Combine like terms: 2x + 6x = 8x 5 + 8x + -1x2 = 0 Solving 5 + 8x + -1x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -5 + -8x + x2 = 0 Move the constant term to the right: Add '5' to each side of the equation. -5 + -8x + 5 + x2 = 0 + 5 Reorder the terms: -5 + 5 + -8x + x2 = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -8x + x2 = 0 + 5 -8x + x2 = 0 + 5 Combine like terms: 0 + 5 = 5 -8x + x2 = 5 The x term is -8x. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8x + 16 + x2 = 5 + 16 Reorder the terms: 16 + -8x + x2 = 5 + 16 Combine like terms: 5 + 16 = 21 16 + -8x + x2 = 21 Factor a perfect square on the left side: (x + -4)(x + -4) = 21 Calculate the square root of the right side: 4.582575695 Break this problem into two subproblems by setting (x + -4) equal to 4.582575695 and -4.582575695.Subproblem 1
x + -4 = 4.582575695 Simplifying x + -4 = 4.582575695 Reorder the terms: -4 + x = 4.582575695 Solving -4 + x = 4.582575695 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 4.582575695 + 4 Combine like terms: -4 + 4 = 0 0 + x = 4.582575695 + 4 x = 4.582575695 + 4 Combine like terms: 4.582575695 + 4 = 8.582575695 x = 8.582575695 Simplifying x = 8.582575695Subproblem 2
x + -4 = -4.582575695 Simplifying x + -4 = -4.582575695 Reorder the terms: -4 + x = -4.582575695 Solving -4 + x = -4.582575695 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -4.582575695 + 4 Combine like terms: -4 + 4 = 0 0 + x = -4.582575695 + 4 x = -4.582575695 + 4 Combine like terms: -4.582575695 + 4 = -0.582575695 x = -0.582575695 Simplifying x = -0.582575695Solution
The solution to the problem is based on the solutions from the subproblems. x = {8.582575695, -0.582575695}
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