How do you find (-3+7i)(1-2i)?

1 Answer
Jim G.
Jul 25, 2016

11 + 13i

Explanation:

Expand the brackets using ,for example, the FOIL method.

(-3+7i)(1-2i)=-3+6i+7i-14i^2

=-3+13i-14i^2

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-3+13i-14i^2=-3+13i+14=11+13i

rArr(3+7i)(1-2i)=11+13i

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