SOLUTION: (3-√-4 + (5-2√-9))= A)8i B)8 C)8-8i D)8+8i

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Question 1088868: (3-√-4 + (5-2√-9))=
A)8i
B)8
C)8-8i
D)8+8i
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

+%283-sqrt%28-4%29+%2B+%285-2sqrt%28-9%29%29%29
%283-sqrt%28-1%2A2%5E2%29+%2B+%285-2sqrt%28-1%2A3%5E2%29%29%29
%283-2sqrt%28-1%29+%2B+%285-2%2A3sqrt%28-1%29%29%29.........since sqrt%28-1%29=i we have
%283-2i+%2B+%285-6i%29%29
3-2i+%2B+5-6i
8-8i
so, your answer is C)8-8i