SOLUTION: Simplify each expression. 1.sqrt -81 2.(5-2i)(2+5i) 3.3+5i/2-4i

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Question 433387: Simplify each expression.
1.sqrt -81
2.(5-2i)(2+5i)
3.3+5i/2-4i

Found 2 solutions by Gogonati, robertb:
Answer by Gogonati(855)   (Show Source): You can put this solution on YOUR website!
1. .
2..
3..
Done.

Answer by robertb(5830)   (Show Source): You can put this solution on YOUR website!

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