Wednesday

July 23, 2014

July 23, 2014

Posted by **Michael** on Monday, April 30, 2012 at 10:31pm.

- math -
**MathGuru**, Tuesday, May 1, 2012 at 6:13pmFirst, multiply both the numerator (top) and denominator (bottom) by the equivalent of 1 to eliminate i in the denominator:

(5 - 9i)(5 - 2i)

----------------

(5 + 2i)(5 - 2i)

25 - 55i + 18i^2

----------------

25 - 4i^2

Remember that i^2 = -1

25 - 55i + 18(-1)

-----------------

25 - 4(-1)

25 - 55i - 18

-------------

25 + 4

7 - 55i

-------

29

You can change this to standard form if asked to do so.

I hope this helps.

**Related Questions**

Math...For All Math Tutors - I would like to know how many of the people ...

math - all i can say is math stinx dont mess with math. without math, a lot of ...

math - I just do not understand how to figure this out. Find the number of ...

English Grammar - A: What time is your math/Math class? B: At eleven forty-five...

Math - Is IB Math Studies the same as Pre-Calculus? I heard that IB Math Studies...

3rd grade Math - Actual question on homework."EXPLAIN HOW YOU CAN BREAK APART ...

math math math math - a. what is the general term of the following series? 60/...

What Makes A Good Math Teacher? - I think a good math teacher is someone who can...

Math - All of my life I have gotten a C average in math. I have been trying to ...

English - Revise the folloing sentences to create parallel constructions. (...