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Simplifying (l + 2)(l + 2) = 0 Reorder the terms: (2 + l)(l + 2) = 0 Reorder the terms: (2 + l)(2 + l) = 0 Multiply (2 + l) * (2 + l) (2(2 + l) + l(2 + l)) = 0 ((2 * 2 + l * 2) + l(2 + l)) = 0 ((4 + 2l) + l(2 + l)) = 0 (4 + 2l + (2 * l + l * l)) = 0 (4 + 2l + (2l + l2)) = 0 Combine like terms: 2l + 2l = 4l (4 + 4l + l2) = 0 Solving 4 + 4l + l2 = 0 Solving for variable 'l'. Factor a trinomial. (2 + l)(2 + l) = 0Subproblem 1
Set the factor '(2 + l)' equal to zero and attempt to solve: Simplifying 2 + l = 0 Solving 2 + l = 0 Move all terms containing l to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + l = 0 + -2 Combine like terms: 2 + -2 = 0 0 + l = 0 + -2 l = 0 + -2 Combine like terms: 0 + -2 = -2 l = -2 Simplifying l = -2Subproblem 2
Set the factor '(2 + l)' equal to zero and attempt to solve: Simplifying 2 + l = 0 Solving 2 + l = 0 Move all terms containing l to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + l = 0 + -2 Combine like terms: 2 + -2 = 0 0 + l = 0 + -2 l = 0 + -2 Combine like terms: 0 + -2 = -2 l = -2 Simplifying l = -2Solution
l = {-2, -2}
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