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Back to 3.1 Complex Numbers

3.1 Exercise 70

Avg difficulty 2.5

Evaluate the expressions, writing the result as a simplified complex number.

( 2+i )( 4−2i ) (1+i) \frac{\left(2 + i\right) \left(4 - 2 i\right)}{\left(1 + i\right)}

OpenStax Precalculus 2e, 3.1 Complex Numbers, exercise 70

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Adapted from College Algebra © 2021 Rice University. Licensed under CC BY 4.0. Sources: College Algebra 2e, Algebra and Trigonometry 2e, Precalculus 2e, College Algebra with Corequisite Support 2e. Imported at revision 4922e46.