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Simplifying 7m2 + 14m + -7 = 0 Reorder the terms: -7 + 14m + 7m2 = 0 Solving -7 + 14m + 7m2 = 0 Solving for variable 'm'. Factor out the Greatest Common Factor (GCF), '7'. 7(-1 + 2m + m2) = 0 Ignore the factor 7.Subproblem 1
Set the factor '(-1 + 2m + m2)' equal to zero and attempt to solve: Simplifying -1 + 2m + m2 = 0 Solving -1 + 2m + m2 = 0 Begin completing the square. Move the constant term to the right: Add '1' to each side of the equation. -1 + 2m + 1 + m2 = 0 + 1 Reorder the terms: -1 + 1 + 2m + m2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 2m + m2 = 0 + 1 2m + m2 = 0 + 1 Combine like terms: 0 + 1 = 1 2m + m2 = 1 The m term is 2m. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2m + 1 + m2 = 1 + 1 Reorder the terms: 1 + 2m + m2 = 1 + 1 Combine like terms: 1 + 1 = 2 1 + 2m + m2 = 2 Factor a perfect square on the left side: (m + 1)(m + 1) = 2 Calculate the square root of the right side: 1.414213562 Break this problem into two subproblems by setting (m + 1) equal to 1.414213562 and -1.414213562.Subproblem 1
m + 1 = 1.414213562 Simplifying m + 1 = 1.414213562 Reorder the terms: 1 + m = 1.414213562 Solving 1 + m = 1.414213562 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + m = 1.414213562 + -1 Combine like terms: 1 + -1 = 0 0 + m = 1.414213562 + -1 m = 1.414213562 + -1 Combine like terms: 1.414213562 + -1 = 0.414213562 m = 0.414213562 Simplifying m = 0.414213562Subproblem 2
m + 1 = -1.414213562 Simplifying m + 1 = -1.414213562 Reorder the terms: 1 + m = -1.414213562 Solving 1 + m = -1.414213562 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + m = -1.414213562 + -1 Combine like terms: 1 + -1 = 0 0 + m = -1.414213562 + -1 m = -1.414213562 + -1 Combine like terms: -1.414213562 + -1 = -2.414213562 m = -2.414213562 Simplifying m = -2.414213562Solution
The solution to the problem is based on the solutions from the subproblems. m = {0.414213562, -2.414213562}Solution
m = {0.414213562, -2.414213562}
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