Algebra 2/Trig.
posted by Tom .
I forgot some stuff from my 7th grade algebra class about complex numbers...like what do you do with a problem like this
5+5i 3i
divided by + divided by
2i 4+3i
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, 43i, simplify all, and you are done.
2x squaed plus 27 equal 0
7/8 x 6/7 =
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