SOLUTION: (2i - 5)/(i + 1) I really need some help with this problem I just can't figure it out.

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: (2i - 5)/(i + 1) I really need some help with this problem I just can't figure it out.      Log On


   

Question 334442: (2i - 5)/(i + 1)
I really need some help with this problem I just can't figure it out.
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
You need to rationalize the denominator
%282i-5%29%2F%28i%2B1%29
%28%282i-5%29%28i-1%29%29%2F%28%28i%2B1%29%28i-1%29%29
%282i%5E2+-+2i+-+5i+%2B5%29%2F%28i%5E2+-1%29
%28-2+-7i+%2B5%29%2F%28-1+-1%29
%283-7i%29%2F%28-2%29
-%283-7i%29%2F2
%28-3%2F2%29+%2B+%287i%2F2%29