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Simplifying (4 + 3i)(5 + -3i) = 0 Multiply (4 + 3i) * (5 + -3i) (4(5 + -3i) + 3i * (5 + -3i)) = 0 ((5 * 4 + -3i * 4) + 3i * (5 + -3i)) = 0 ((20 + -12i) + 3i * (5 + -3i)) = 0 (20 + -12i + (5 * 3i + -3i * 3i)) = 0 (20 + -12i + (15i + -9i2)) = 0 Combine like terms: -12i + 15i = 3i (20 + 3i + -9i2) = 0 Solving 20 + 3i + -9i2 = 0 Solving for variable 'i'. Factor a trinomial. (5 + -3i)(4 + 3i) = 0Subproblem 1
Set the factor '(5 + -3i)' equal to zero and attempt to solve: Simplifying 5 + -3i = 0 Solving 5 + -3i = 0 Move all terms containing i to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -3i = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3i = 0 + -5 -3i = 0 + -5 Combine like terms: 0 + -5 = -5 -3i = -5 Divide each side by '-3'. i = 1.666666667 Simplifying i = 1.666666667Subproblem 2
Set the factor '(4 + 3i)' equal to zero and attempt to solve: Simplifying 4 + 3i = 0 Solving 4 + 3i = 0 Move all terms containing i to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 3i = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 3i = 0 + -4 3i = 0 + -4 Combine like terms: 0 + -4 = -4 3i = -4 Divide each side by '3'. i = -1.333333333 Simplifying i = -1.333333333Solution
i = {1.666666667, -1.333333333}
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