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Simplifying 2m2 + 8m + -19 = 0 Reorder the terms: -19 + 8m + 2m2 = 0 Solving -19 + 8m + 2m2 = 0 Solving for variable 'm'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -9.5 + 4m + m2 = 0 Move the constant term to the right: Add '9.5' to each side of the equation. -9.5 + 4m + 9.5 + m2 = 0 + 9.5 Reorder the terms: -9.5 + 9.5 + 4m + m2 = 0 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 0.0 + 4m + m2 = 0 + 9.5 4m + m2 = 0 + 9.5 Combine like terms: 0 + 9.5 = 9.5 4m + m2 = 9.5 The m term is 4m. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4m + 4 + m2 = 9.5 + 4 Reorder the terms: 4 + 4m + m2 = 9.5 + 4 Combine like terms: 9.5 + 4 = 13.5 4 + 4m + m2 = 13.5 Factor a perfect square on the left side: (m + 2)(m + 2) = 13.5 Calculate the square root of the right side: 3.674234614 Break this problem into two subproblems by setting (m + 2) equal to 3.674234614 and -3.674234614.Subproblem 1
m + 2 = 3.674234614 Simplifying m + 2 = 3.674234614 Reorder the terms: 2 + m = 3.674234614 Solving 2 + m = 3.674234614 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + m = 3.674234614 + -2 Combine like terms: 2 + -2 = 0 0 + m = 3.674234614 + -2 m = 3.674234614 + -2 Combine like terms: 3.674234614 + -2 = 1.674234614 m = 1.674234614 Simplifying m = 1.674234614Subproblem 2
m + 2 = -3.674234614 Simplifying m + 2 = -3.674234614 Reorder the terms: 2 + m = -3.674234614 Solving 2 + m = -3.674234614 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + m = -3.674234614 + -2 Combine like terms: 2 + -2 = 0 0 + m = -3.674234614 + -2 m = -3.674234614 + -2 Combine like terms: -3.674234614 + -2 = -5.674234614 m = -5.674234614 Simplifying m = -5.674234614Solution
The solution to the problem is based on the solutions from the subproblems. m = {1.674234614, -5.674234614}
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