posted by Tom on .
I forgot some stuff from my 7th grade algebra class about complex numbers...like what do you do with a problem like this
divided by + divided by
thanks.(divided by refers to dividing line in a fraction)
In each case, RATIONALIZE the denominator. Here is the way on the first problem. Mulitipy the numerator and the demoniator by 2+1. Isn't that called the complex conjugate? Anyway, that will solve the problem.
Then multiply on the second fraction both top and bottom by the complex conjugate, 4-3i, simplify all, and you are done.
2x squaed plus 27 equal 0
7/8 x 6/7 =