Question

Please help asap

perform the indicated operation. Write the answer in the form a+bi.
(3-10i)(2+4i)

20 points

Answer 1

46 -8i

Explanation:

Multiplication of complex numbers is done in a fashion similar to multiplication of any binomials. The difference is that i² = -1, so some terms can be combined.

(3 -10i)(2 +4i) = 3(2 +4i) -10i(2 +4i)

= 6 +12i -20i -40i² = 6 -8i +40

= 46 -8i

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