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Simplifying -7x2 + -2 = -10x Reorder the terms: -2 + -7x2 = -10x Solving -2 + -7x2 = -10x Solving for variable 'x'. Reorder the terms: -2 + 10x + -7x2 = -10x + 10x Combine like terms: -10x + 10x = 0 -2 + 10x + -7x2 = 0 Begin completing the square. Divide all terms by -7 the coefficient of the squared term: Divide each side by '-7'. 0.2857142857 + -1.428571429x + x2 = 0 Move the constant term to the right: Add '-0.2857142857' to each side of the equation. 0.2857142857 + -1.428571429x + -0.2857142857 + x2 = 0 + -0.2857142857 Reorder the terms: 0.2857142857 + -0.2857142857 + -1.428571429x + x2 = 0 + -0.2857142857 Combine like terms: 0.2857142857 + -0.2857142857 = 0.0000000000 0.0000000000 + -1.428571429x + x2 = 0 + -0.2857142857 -1.428571429x + x2 = 0 + -0.2857142857 Combine like terms: 0 + -0.2857142857 = -0.2857142857 -1.428571429x + x2 = -0.2857142857 The x term is -1.428571429x. Take half its coefficient (-0.7142857145). Square it (0.5102040819) and add it to both sides. Add '0.5102040819' to each side of the equation. -1.428571429x + 0.5102040819 + x2 = -0.2857142857 + 0.5102040819 Reorder the terms: 0.5102040819 + -1.428571429x + x2 = -0.2857142857 + 0.5102040819 Combine like terms: -0.2857142857 + 0.5102040819 = 0.2244897962 0.5102040819 + -1.428571429x + x2 = 0.2244897962 Factor a perfect square on the left side: (x + -0.7142857145)(x + -0.7142857145) = 0.2244897962 Calculate the square root of the right side: 0.473803542 Break this problem into two subproblems by setting (x + -0.7142857145) equal to 0.473803542 and -0.473803542.Subproblem 1
x + -0.7142857145 = 0.473803542 Simplifying x + -0.7142857145 = 0.473803542 Reorder the terms: -0.7142857145 + x = 0.473803542 Solving -0.7142857145 + x = 0.473803542 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.7142857145' to each side of the equation. -0.7142857145 + 0.7142857145 + x = 0.473803542 + 0.7142857145 Combine like terms: -0.7142857145 + 0.7142857145 = 0.0000000000 0.0000000000 + x = 0.473803542 + 0.7142857145 x = 0.473803542 + 0.7142857145 Combine like terms: 0.473803542 + 0.7142857145 = 1.1880892565 x = 1.1880892565 Simplifying x = 1.1880892565Subproblem 2
x + -0.7142857145 = -0.473803542 Simplifying x + -0.7142857145 = -0.473803542 Reorder the terms: -0.7142857145 + x = -0.473803542 Solving -0.7142857145 + x = -0.473803542 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.7142857145' to each side of the equation. -0.7142857145 + 0.7142857145 + x = -0.473803542 + 0.7142857145 Combine like terms: -0.7142857145 + 0.7142857145 = 0.0000000000 0.0000000000 + x = -0.473803542 + 0.7142857145 x = -0.473803542 + 0.7142857145 Combine like terms: -0.473803542 + 0.7142857145 = 0.2404821725 x = 0.2404821725 Simplifying x = 0.2404821725Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.1880892565, 0.2404821725}
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