(2+3i)(2-3i) a and b
Answers
Answered by
0
Answer:
jt583+58233862*1352064-454ujrizvbfhrzdh79566'; vjyufhx
Answered by
1
Answer:
13
Step-by-step explanation:
(2+3i)(2-3i)
=2²-(3i)² ( as
)
4-(3²i²)
4-(9(-1)) ( as i²=-1)
4-(-9)
4+9
13
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