How to simplify (2-3i)(2+3i)?

sublimnoj7u7

sublimnoj7u7

Answered question

2023-01-15

How to simplify (23i)(2+3i)?

Answer & Explanation

olgalumyblog83d

olgalumyblog83d

Beginner2023-01-16Added 10 answers

The following is the form of the given numerical expression:
(ab)(a+b)=a2b2
Let us apply it
Here a=2 and b=3i
(23i)(2+3i)
=22(3i)2
=49i2
So we know i2=1
Then,
(23i)(2+3i)=4+9=13

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