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Simplifying (1 + -3i)(2 + 3i) = 0 Multiply (1 + -3i) * (2 + 3i) (1(2 + 3i) + -3i * (2 + 3i)) = 0 ((2 * 1 + 3i * 1) + -3i * (2 + 3i)) = 0 ((2 + 3i) + -3i * (2 + 3i)) = 0 (2 + 3i + (2 * -3i + 3i * -3i)) = 0 (2 + 3i + (-6i + -9i2)) = 0 Combine like terms: 3i + -6i = -3i (2 + -3i + -9i2) = 0 Solving 2 + -3i + -9i2 = 0 Solving for variable 'i'. Factor a trinomial. (1 + -3i)(2 + 3i) = 0Subproblem 1
Set the factor '(1 + -3i)' equal to zero and attempt to solve: Simplifying 1 + -3i = 0 Solving 1 + -3i = 0 Move all terms containing i to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -3i = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3i = 0 + -1 -3i = 0 + -1 Combine like terms: 0 + -1 = -1 -3i = -1 Divide each side by '-3'. i = 0.3333333333 Simplifying i = 0.3333333333Subproblem 2
Set the factor '(2 + 3i)' equal to zero and attempt to solve: Simplifying 2 + 3i = 0 Solving 2 + 3i = 0 Move all terms containing i to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 3i = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 3i = 0 + -2 3i = 0 + -2 Combine like terms: 0 + -2 = -2 3i = -2 Divide each side by '3'. i = -0.6666666667 Simplifying i = -0.6666666667Solution
i = {0.3333333333, -0.6666666667}
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