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Simplifying 7x2 + -6x + -50 = 0 Reorder the terms: -50 + -6x + 7x2 = 0 Solving -50 + -6x + 7x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -7.142857143 + -0.8571428571x + x2 = 0 Move the constant term to the right: Add '7.142857143' to each side of the equation. -7.142857143 + -0.8571428571x + 7.142857143 + x2 = 0 + 7.142857143 Reorder the terms: -7.142857143 + 7.142857143 + -0.8571428571x + x2 = 0 + 7.142857143 Combine like terms: -7.142857143 + 7.142857143 = 0.000000000 0.000000000 + -0.8571428571x + x2 = 0 + 7.142857143 -0.8571428571x + x2 = 0 + 7.142857143 Combine like terms: 0 + 7.142857143 = 7.142857143 -0.8571428571x + x2 = 7.142857143 The x term is -0.8571428571x. Take half its coefficient (-0.4285714286). Square it (0.1836734694) and add it to both sides. Add '0.1836734694' to each side of the equation. -0.8571428571x + 0.1836734694 + x2 = 7.142857143 + 0.1836734694 Reorder the terms: 0.1836734694 + -0.8571428571x + x2 = 7.142857143 + 0.1836734694 Combine like terms: 7.142857143 + 0.1836734694 = 7.3265306124 0.1836734694 + -0.8571428571x + x2 = 7.3265306124 Factor a perfect square on the left side: (x + -0.4285714286)(x + -0.4285714286) = 7.3265306124 Calculate the square root of the right side: 2.706756475 Break this problem into two subproblems by setting (x + -0.4285714286) equal to 2.706756475 and -2.706756475.Subproblem 1
x + -0.4285714286 = 2.706756475 Simplifying x + -0.4285714286 = 2.706756475 Reorder the terms: -0.4285714286 + x = 2.706756475 Solving -0.4285714286 + x = 2.706756475 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4285714286' to each side of the equation. -0.4285714286 + 0.4285714286 + x = 2.706756475 + 0.4285714286 Combine like terms: -0.4285714286 + 0.4285714286 = 0.0000000000 0.0000000000 + x = 2.706756475 + 0.4285714286 x = 2.706756475 + 0.4285714286 Combine like terms: 2.706756475 + 0.4285714286 = 3.1353279036 x = 3.1353279036 Simplifying x = 3.1353279036Subproblem 2
x + -0.4285714286 = -2.706756475 Simplifying x + -0.4285714286 = -2.706756475 Reorder the terms: -0.4285714286 + x = -2.706756475 Solving -0.4285714286 + x = -2.706756475 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4285714286' to each side of the equation. -0.4285714286 + 0.4285714286 + x = -2.706756475 + 0.4285714286 Combine like terms: -0.4285714286 + 0.4285714286 = 0.0000000000 0.0000000000 + x = -2.706756475 + 0.4285714286 x = -2.706756475 + 0.4285714286 Combine like terms: -2.706756475 + 0.4285714286 = -2.2781850464 x = -2.2781850464 Simplifying x = -2.2781850464Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.1353279036, -2.2781850464}
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