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Simplifying 2u2 + -8u + -12 = 0 Reorder the terms: -12 + -8u + 2u2 = 0 Solving -12 + -8u + 2u2 = 0 Solving for variable 'u'. Factor out the Greatest Common Factor (GCF), '2'. 2(-6 + -4u + u2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-6 + -4u + u2)' equal to zero and attempt to solve: Simplifying -6 + -4u + u2 = 0 Solving -6 + -4u + u2 = 0 Begin completing the square. Move the constant term to the right: Add '6' to each side of the equation. -6 + -4u + 6 + u2 = 0 + 6 Reorder the terms: -6 + 6 + -4u + u2 = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -4u + u2 = 0 + 6 -4u + u2 = 0 + 6 Combine like terms: 0 + 6 = 6 -4u + u2 = 6 The u term is -4u. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4u + 4 + u2 = 6 + 4 Reorder the terms: 4 + -4u + u2 = 6 + 4 Combine like terms: 6 + 4 = 10 4 + -4u + u2 = 10 Factor a perfect square on the left side: (u + -2)(u + -2) = 10 Calculate the square root of the right side: 3.16227766 Break this problem into two subproblems by setting (u + -2) equal to 3.16227766 and -3.16227766.Subproblem 1
u + -2 = 3.16227766 Simplifying u + -2 = 3.16227766 Reorder the terms: -2 + u = 3.16227766 Solving -2 + u = 3.16227766 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + u = 3.16227766 + 2 Combine like terms: -2 + 2 = 0 0 + u = 3.16227766 + 2 u = 3.16227766 + 2 Combine like terms: 3.16227766 + 2 = 5.16227766 u = 5.16227766 Simplifying u = 5.16227766Subproblem 2
u + -2 = -3.16227766 Simplifying u + -2 = -3.16227766 Reorder the terms: -2 + u = -3.16227766 Solving -2 + u = -3.16227766 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + u = -3.16227766 + 2 Combine like terms: -2 + 2 = 0 0 + u = -3.16227766 + 2 u = -3.16227766 + 2 Combine like terms: -3.16227766 + 2 = -1.16227766 u = -1.16227766 Simplifying u = -1.16227766Solution
The solution to the problem is based on the solutions from the subproblems. u = {5.16227766, -1.16227766}Solution
u = {5.16227766, -1.16227766}
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