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Simplifying 3v2 + 26v + -45 = 0 Reorder the terms: -45 + 26v + 3v2 = 0 Solving -45 + 26v + 3v2 = 0 Solving for variable 'v'. Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -15 + 8.666666667v + v2 = 0 Move the constant term to the right: Add '15' to each side of the equation. -15 + 8.666666667v + 15 + v2 = 0 + 15 Reorder the terms: -15 + 15 + 8.666666667v + v2 = 0 + 15 Combine like terms: -15 + 15 = 0 0 + 8.666666667v + v2 = 0 + 15 8.666666667v + v2 = 0 + 15 Combine like terms: 0 + 15 = 15 8.666666667v + v2 = 15 The v term is 8.666666667v. Take half its coefficient (4.333333334). Square it (18.77777778) and add it to both sides. Add '18.77777778' to each side of the equation. 8.666666667v + 18.77777778 + v2 = 15 + 18.77777778 Reorder the terms: 18.77777778 + 8.666666667v + v2 = 15 + 18.77777778 Combine like terms: 15 + 18.77777778 = 33.77777778 18.77777778 + 8.666666667v + v2 = 33.77777778 Factor a perfect square on the left side: (v + 4.333333334)(v + 4.333333334) = 33.77777778 Calculate the square root of the right side: 5.811865258 Break this problem into two subproblems by setting (v + 4.333333334) equal to 5.811865258 and -5.811865258.Subproblem 1
v + 4.333333334 = 5.811865258 Simplifying v + 4.333333334 = 5.811865258 Reorder the terms: 4.333333334 + v = 5.811865258 Solving 4.333333334 + v = 5.811865258 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-4.333333334' to each side of the equation. 4.333333334 + -4.333333334 + v = 5.811865258 + -4.333333334 Combine like terms: 4.333333334 + -4.333333334 = 0.000000000 0.000000000 + v = 5.811865258 + -4.333333334 v = 5.811865258 + -4.333333334 Combine like terms: 5.811865258 + -4.333333334 = 1.478531924 v = 1.478531924 Simplifying v = 1.478531924Subproblem 2
v + 4.333333334 = -5.811865258 Simplifying v + 4.333333334 = -5.811865258 Reorder the terms: 4.333333334 + v = -5.811865258 Solving 4.333333334 + v = -5.811865258 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-4.333333334' to each side of the equation. 4.333333334 + -4.333333334 + v = -5.811865258 + -4.333333334 Combine like terms: 4.333333334 + -4.333333334 = 0.000000000 0.000000000 + v = -5.811865258 + -4.333333334 v = -5.811865258 + -4.333333334 Combine like terms: -5.811865258 + -4.333333334 = -10.145198592 v = -10.145198592 Simplifying v = -10.145198592Solution
The solution to the problem is based on the solutions from the subproblems. v = {1.478531924, -10.145198592}
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