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Simplifying 2m2 + 7m = 5 Reorder the terms: 7m + 2m2 = 5 Solving 7m + 2m2 = 5 Solving for variable 'm'. Reorder the terms: -5 + 7m + 2m2 = 5 + -5 Combine like terms: 5 + -5 = 0 -5 + 7m + 2m2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -2.5 + 3.5m + m2 = 0 Move the constant term to the right: Add '2.5' to each side of the equation. -2.5 + 3.5m + 2.5 + m2 = 0 + 2.5 Reorder the terms: -2.5 + 2.5 + 3.5m + m2 = 0 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + 3.5m + m2 = 0 + 2.5 3.5m + m2 = 0 + 2.5 Combine like terms: 0 + 2.5 = 2.5 3.5m + m2 = 2.5 The m term is 3.5m. Take half its coefficient (1.75). Square it (3.0625) and add it to both sides. Add '3.0625' to each side of the equation. 3.5m + 3.0625 + m2 = 2.5 + 3.0625 Reorder the terms: 3.0625 + 3.5m + m2 = 2.5 + 3.0625 Combine like terms: 2.5 + 3.0625 = 5.5625 3.0625 + 3.5m + m2 = 5.5625 Factor a perfect square on the left side: (m + 1.75)(m + 1.75) = 5.5625 Calculate the square root of the right side: 2.358495283 Break this problem into two subproblems by setting (m + 1.75) equal to 2.358495283 and -2.358495283.Subproblem 1
m + 1.75 = 2.358495283 Simplifying m + 1.75 = 2.358495283 Reorder the terms: 1.75 + m = 2.358495283 Solving 1.75 + m = 2.358495283 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1.75' to each side of the equation. 1.75 + -1.75 + m = 2.358495283 + -1.75 Combine like terms: 1.75 + -1.75 = 0.00 0.00 + m = 2.358495283 + -1.75 m = 2.358495283 + -1.75 Combine like terms: 2.358495283 + -1.75 = 0.608495283 m = 0.608495283 Simplifying m = 0.608495283Subproblem 2
m + 1.75 = -2.358495283 Simplifying m + 1.75 = -2.358495283 Reorder the terms: 1.75 + m = -2.358495283 Solving 1.75 + m = -2.358495283 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1.75' to each side of the equation. 1.75 + -1.75 + m = -2.358495283 + -1.75 Combine like terms: 1.75 + -1.75 = 0.00 0.00 + m = -2.358495283 + -1.75 m = -2.358495283 + -1.75 Combine like terms: -2.358495283 + -1.75 = -4.108495283 m = -4.108495283 Simplifying m = -4.108495283Solution
The solution to the problem is based on the solutions from the subproblems. m = {0.608495283, -4.108495283}
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