hjernigan hjernigan

18-12-2015
Mathematics

contestada

Simplify the given expression below: (7 − 3i) • (2 − i)

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Jose8199 Jose8199

03-07-2017

Foil it, 7 x 2, -3i x -i, 7 x -i, and -3i x 2. It would come to 14+3 i^2-7i-6i. i^2=-1, so it would be 14-3=11 and -7i-6i=-13i
The answer is 11-13i

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