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OpenStudy (anonymous):
Find the product of the complex numbers and enter it below. (2 - 3i )(1 + 7i )
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OpenStudy (anonymous):
(2-3i)(1+7i) // multiply the left side through 2(1+7i) - 3i(1+7i) // expand. remember to carry the negative 2(1) + 2(7i) - (3i)(1) - (3i)(7i) // expand. i^2 = -1 2 + 14i - 3i - 21(-1) // add 2 + 11i + 21 // add 23 + 11i
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