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Simplifying 4v2 + -14v + -15 = 0 Reorder the terms: -15 + -14v + 4v2 = 0 Solving -15 + -14v + 4v2 = 0 Solving for variable 'v'. Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -3.75 + -3.5v + v2 = 0 Move the constant term to the right: Add '3.75' to each side of the equation. -3.75 + -3.5v + 3.75 + v2 = 0 + 3.75 Reorder the terms: -3.75 + 3.75 + -3.5v + v2 = 0 + 3.75 Combine like terms: -3.75 + 3.75 = 0.00 0.00 + -3.5v + v2 = 0 + 3.75 -3.5v + v2 = 0 + 3.75 Combine like terms: 0 + 3.75 = 3.75 -3.5v + v2 = 3.75 The v term is -3.5v. 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. -3.5v + 3.0625 + v2 = 3.75 + 3.0625 Reorder the terms: 3.0625 + -3.5v + v2 = 3.75 + 3.0625 Combine like terms: 3.75 + 3.0625 = 6.8125 3.0625 + -3.5v + v2 = 6.8125 Factor a perfect square on the left side: (v + -1.75)(v + -1.75) = 6.8125 Calculate the square root of the right side: 2.610076627 Break this problem into two subproblems by setting (v + -1.75) equal to 2.610076627 and -2.610076627.Subproblem 1
v + -1.75 = 2.610076627 Simplifying v + -1.75 = 2.610076627 Reorder the terms: -1.75 + v = 2.610076627 Solving -1.75 + v = 2.610076627 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + v = 2.610076627 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + v = 2.610076627 + 1.75 v = 2.610076627 + 1.75 Combine like terms: 2.610076627 + 1.75 = 4.360076627 v = 4.360076627 Simplifying v = 4.360076627Subproblem 2
v + -1.75 = -2.610076627 Simplifying v + -1.75 = -2.610076627 Reorder the terms: -1.75 + v = -2.610076627 Solving -1.75 + v = -2.610076627 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + v = -2.610076627 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + v = -2.610076627 + 1.75 v = -2.610076627 + 1.75 Combine like terms: -2.610076627 + 1.75 = -0.860076627 v = -0.860076627 Simplifying v = -0.860076627Solution
The solution to the problem is based on the solutions from the subproblems. v = {4.360076627, -0.860076627}
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