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Simplifying 4v2 + -22v + 5 = 0 Reorder the terms: 5 + -22v + 4v2 = 0 Solving 5 + -22v + 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'. 1.25 + -5.5v + v2 = 0 Move the constant term to the right: Add '-1.25' to each side of the equation. 1.25 + -5.5v + -1.25 + v2 = 0 + -1.25 Reorder the terms: 1.25 + -1.25 + -5.5v + v2 = 0 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + -5.5v + v2 = 0 + -1.25 -5.5v + v2 = 0 + -1.25 Combine like terms: 0 + -1.25 = -1.25 -5.5v + v2 = -1.25 The v term is -5.5v. Take half its coefficient (-2.75). Square it (7.5625) and add it to both sides. Add '7.5625' to each side of the equation. -5.5v + 7.5625 + v2 = -1.25 + 7.5625 Reorder the terms: 7.5625 + -5.5v + v2 = -1.25 + 7.5625 Combine like terms: -1.25 + 7.5625 = 6.3125 7.5625 + -5.5v + v2 = 6.3125 Factor a perfect square on the left side: (v + -2.75)(v + -2.75) = 6.3125 Calculate the square root of the right side: 2.512468905 Break this problem into two subproblems by setting (v + -2.75) equal to 2.512468905 and -2.512468905.Subproblem 1
v + -2.75 = 2.512468905 Simplifying v + -2.75 = 2.512468905 Reorder the terms: -2.75 + v = 2.512468905 Solving -2.75 + v = 2.512468905 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + v = 2.512468905 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + v = 2.512468905 + 2.75 v = 2.512468905 + 2.75 Combine like terms: 2.512468905 + 2.75 = 5.262468905 v = 5.262468905 Simplifying v = 5.262468905Subproblem 2
v + -2.75 = -2.512468905 Simplifying v + -2.75 = -2.512468905 Reorder the terms: -2.75 + v = -2.512468905 Solving -2.75 + v = -2.512468905 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + v = -2.512468905 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + v = -2.512468905 + 2.75 v = -2.512468905 + 2.75 Combine like terms: -2.512468905 + 2.75 = 0.237531095 v = 0.237531095 Simplifying v = 0.237531095Solution
The solution to the problem is based on the solutions from the subproblems. v = {5.262468905, 0.237531095}
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