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Which epression is equivalent to(4+7i)(3+4i)?​

Which epression is equivalent to(4+7i)(3+4i)?​
asked 180k views
1 vote
Which epression is equivalent to(4+7i)(3+4i)?​

asked
User Tolis Gerodimos
by
8.2k points

2 Answers

4 votes

Using FOIL...

(4+7i)(3+4i) = 12+16i+21i+28i² = 12+37i+28i²

Because i²=-1...

12+37i+28i² = 12+37i+28(-1) = 12+37i-28 = -16+37i

answered
User Chie
by
8.7k points
3 votes

Answer:

(12+12i)

Explanation:

answered
User AtoMerz
by
7.9k points
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