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Simplifying v2 + -2v + -18 = -6 Reorder the terms: -18 + -2v + v2 = -6 Solving -18 + -2v + v2 = -6 Solving for variable 'v'. Reorder the terms: -18 + 6 + -2v + v2 = -6 + 6 Combine like terms: -18 + 6 = -12 -12 + -2v + v2 = -6 + 6 Combine like terms: -6 + 6 = 0 -12 + -2v + v2 = 0 Begin completing the square. Move the constant term to the right: Add '12' to each side of the equation. -12 + -2v + 12 + v2 = 0 + 12 Reorder the terms: -12 + 12 + -2v + v2 = 0 + 12 Combine like terms: -12 + 12 = 0 0 + -2v + v2 = 0 + 12 -2v + v2 = 0 + 12 Combine like terms: 0 + 12 = 12 -2v + v2 = 12 The v term is -2v. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2v + 1 + v2 = 12 + 1 Reorder the terms: 1 + -2v + v2 = 12 + 1 Combine like terms: 12 + 1 = 13 1 + -2v + v2 = 13 Factor a perfect square on the left side: (v + -1)(v + -1) = 13 Calculate the square root of the right side: 3.605551275 Break this problem into two subproblems by setting (v + -1) equal to 3.605551275 and -3.605551275.Subproblem 1
v + -1 = 3.605551275 Simplifying v + -1 = 3.605551275 Reorder the terms: -1 + v = 3.605551275 Solving -1 + v = 3.605551275 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + v = 3.605551275 + 1 Combine like terms: -1 + 1 = 0 0 + v = 3.605551275 + 1 v = 3.605551275 + 1 Combine like terms: 3.605551275 + 1 = 4.605551275 v = 4.605551275 Simplifying v = 4.605551275Subproblem 2
v + -1 = -3.605551275 Simplifying v + -1 = -3.605551275 Reorder the terms: -1 + v = -3.605551275 Solving -1 + v = -3.605551275 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + v = -3.605551275 + 1 Combine like terms: -1 + 1 = 0 0 + v = -3.605551275 + 1 v = -3.605551275 + 1 Combine like terms: -3.605551275 + 1 = -2.605551275 v = -2.605551275 Simplifying v = -2.605551275Solution
The solution to the problem is based on the solutions from the subproblems. v = {4.605551275, -2.605551275}
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