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Simplifying 7m2 + 5m + -3 = 0 Reorder the terms: -3 + 5m + 7m2 = 0 Solving -3 + 5m + 7m2 = 0 Solving for variable 'm'. Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -0.4285714286 + 0.7142857143m + m2 = 0 Move the constant term to the right: Add '0.4285714286' to each side of the equation. -0.4285714286 + 0.7142857143m + 0.4285714286 + m2 = 0 + 0.4285714286 Reorder the terms: -0.4285714286 + 0.4285714286 + 0.7142857143m + m2 = 0 + 0.4285714286 Combine like terms: -0.4285714286 + 0.4285714286 = 0.0000000000 0.0000000000 + 0.7142857143m + m2 = 0 + 0.4285714286 0.7142857143m + m2 = 0 + 0.4285714286 Combine like terms: 0 + 0.4285714286 = 0.4285714286 0.7142857143m + m2 = 0.4285714286 The m term is 0.7142857143m. Take half its coefficient (0.3571428572). Square it (0.1275510204) and add it to both sides. Add '0.1275510204' to each side of the equation. 0.7142857143m + 0.1275510204 + m2 = 0.4285714286 + 0.1275510204 Reorder the terms: 0.1275510204 + 0.7142857143m + m2 = 0.4285714286 + 0.1275510204 Combine like terms: 0.4285714286 + 0.1275510204 = 0.556122449 0.1275510204 + 0.7142857143m + m2 = 0.556122449 Factor a perfect square on the left side: (m + 0.3571428572)(m + 0.3571428572) = 0.556122449 Calculate the square root of the right side: 0.745736179 Break this problem into two subproblems by setting (m + 0.3571428572) equal to 0.745736179 and -0.745736179.Subproblem 1
m + 0.3571428572 = 0.745736179 Simplifying m + 0.3571428572 = 0.745736179 Reorder the terms: 0.3571428572 + m = 0.745736179 Solving 0.3571428572 + m = 0.745736179 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.3571428572' to each side of the equation. 0.3571428572 + -0.3571428572 + m = 0.745736179 + -0.3571428572 Combine like terms: 0.3571428572 + -0.3571428572 = 0.0000000000 0.0000000000 + m = 0.745736179 + -0.3571428572 m = 0.745736179 + -0.3571428572 Combine like terms: 0.745736179 + -0.3571428572 = 0.3885933218 m = 0.3885933218 Simplifying m = 0.3885933218Subproblem 2
m + 0.3571428572 = -0.745736179 Simplifying m + 0.3571428572 = -0.745736179 Reorder the terms: 0.3571428572 + m = -0.745736179 Solving 0.3571428572 + m = -0.745736179 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.3571428572' to each side of the equation. 0.3571428572 + -0.3571428572 + m = -0.745736179 + -0.3571428572 Combine like terms: 0.3571428572 + -0.3571428572 = 0.0000000000 0.0000000000 + m = -0.745736179 + -0.3571428572 m = -0.745736179 + -0.3571428572 Combine like terms: -0.745736179 + -0.3571428572 = -1.1028790362 m = -1.1028790362 Simplifying m = -1.1028790362Solution
The solution to the problem is based on the solutions from the subproblems. m = {0.3885933218, -1.1028790362}
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