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yKpoI14uk [10]
3 years ago
7

How do you simplify #(-3 - 2i)(-3 + 3i)#?

Mathematics
1 answer:
dybincka [34]3 years ago
7 0
So, ( -3 - 2i )( -3 + 3i ) = 9 - 9i +6i - 6i^2 = 9 - 3i - 6·(-1) = 9 + 6 - 3i = 15 - 3i;
We have / 15 +(- 3)i / = 15.29;\sqrt{ 15^{2} +  (-3)^{2}  } =  \sqrt{225 + 9} =  \sqrt{234} =
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