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Carina Cameron
Mathematics
1 July, 13:14
Multiply (8 + 3i) (3 + 5i)
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Rory Richard
1 July, 13:30
0
12+49i
when you get i^2 it's the same as multiplying by - 1 so
factoring it out will turn out like this
15i^2+40i+9i+27
instead of 15 i^2 multiply 15 x-1
-15+49i+27
12+49i
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