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Simplifying 2j2 + 31j + 15 = 0 Reorder the terms: 15 + 31j + 2j2 = 0 Solving 15 + 31j + 2j2 = 0 Solving for variable 'j'. Factor a trinomial. (15 + j)(1 + 2j) = 0Subproblem 1
Set the factor '(15 + j)' equal to zero and attempt to solve: Simplifying 15 + j = 0 Solving 15 + j = 0 Move all terms containing j to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + j = 0 + -15 Combine like terms: 15 + -15 = 0 0 + j = 0 + -15 j = 0 + -15 Combine like terms: 0 + -15 = -15 j = -15 Simplifying j = -15Subproblem 2
Set the factor '(1 + 2j)' equal to zero and attempt to solve: Simplifying 1 + 2j = 0 Solving 1 + 2j = 0 Move all terms containing j to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 2j = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2j = 0 + -1 2j = 0 + -1 Combine like terms: 0 + -1 = -1 2j = -1 Divide each side by '2'. j = -0.5 Simplifying j = -0.5Solution
j = {-15, -0.5}
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