Question

find the value of (3+i5)(2+i6)
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Answer 1

After opening bracket we get
6+9i+10i+30i^2
6+19i-30
-24+19i

Answer 2

Step-by-step explanation:

3x2+3x6i+2x5i+5i+6i

6+18i+10i+30i^2 (where i^2=-1)

6+18i+10i+30(-1)

6+28i-30

28i-24