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Simplifying (4v2 + -7v + 2) + (-5v2 + v + 6) = 0 Reorder the terms: (2 + -7v + 4v2) + (-5v2 + v + 6) = 0 Remove parenthesis around (2 + -7v + 4v2) 2 + -7v + 4v2 + (-5v2 + v + 6) = 0 Reorder the terms: 2 + -7v + 4v2 + (6 + v + -5v2) = 0 Remove parenthesis around (6 + v + -5v2) 2 + -7v + 4v2 + 6 + v + -5v2 = 0 Reorder the terms: 2 + 6 + -7v + v + 4v2 + -5v2 = 0 Combine like terms: 2 + 6 = 8 8 + -7v + v + 4v2 + -5v2 = 0 Combine like terms: -7v + v = -6v 8 + -6v + 4v2 + -5v2 = 0 Combine like terms: 4v2 + -5v2 = -1v2 8 + -6v + -1v2 = 0 Solving 8 + -6v + -1v2 = 0 Solving for variable 'v'. Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -8 + 6v + v2 = 0 Move the constant term to the right: Add '8' to each side of the equation. -8 + 6v + 8 + v2 = 0 + 8 Reorder the terms: -8 + 8 + 6v + v2 = 0 + 8 Combine like terms: -8 + 8 = 0 0 + 6v + v2 = 0 + 8 6v + v2 = 0 + 8 Combine like terms: 0 + 8 = 8 6v + v2 = 8 The v term is 6v. Take half its coefficient (3). Square it (9) and add it to both sides. Add '9' to each side of the equation. 6v + 9 + v2 = 8 + 9 Reorder the terms: 9 + 6v + v2 = 8 + 9 Combine like terms: 8 + 9 = 17 9 + 6v + v2 = 17 Factor a perfect square on the left side: (v + 3)(v + 3) = 17 Calculate the square root of the right side: 4.123105626 Break this problem into two subproblems by setting (v + 3) equal to 4.123105626 and -4.123105626.Subproblem 1
v + 3 = 4.123105626 Simplifying v + 3 = 4.123105626 Reorder the terms: 3 + v = 4.123105626 Solving 3 + v = 4.123105626 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + v = 4.123105626 + -3 Combine like terms: 3 + -3 = 0 0 + v = 4.123105626 + -3 v = 4.123105626 + -3 Combine like terms: 4.123105626 + -3 = 1.123105626 v = 1.123105626 Simplifying v = 1.123105626Subproblem 2
v + 3 = -4.123105626 Simplifying v + 3 = -4.123105626 Reorder the terms: 3 + v = -4.123105626 Solving 3 + v = -4.123105626 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + v = -4.123105626 + -3 Combine like terms: 3 + -3 = 0 0 + v = -4.123105626 + -3 v = -4.123105626 + -3 Combine like terms: -4.123105626 + -3 = -7.123105626 v = -7.123105626 Simplifying v = -7.123105626Solution
The solution to the problem is based on the solutions from the subproblems. v = {1.123105626, -7.123105626}
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