SOLUTION: Using multiplication solve this Rational Expression. (3z^2+12z-96)/(z^2-11z+28) * (6z^2-32z-70)/(3z^2+29z+40) Thanks,

Algebra ->  Rational-functions -> SOLUTION: Using multiplication solve this Rational Expression. (3z^2+12z-96)/(z^2-11z+28) * (6z^2-32z-70)/(3z^2+29z+40) Thanks,      Log On


   

Question 625451: Using multiplication solve this Rational Expression.
(3z^2+12z-96)/(z^2-11z+28) * (6z^2-32z-70)/(3z^2+29z+40)


Thanks,
Found 2 solutions by EdwinParker, Edwin McCravy:
Answer by EdwinParker(16) About Me  (Show Source):
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
expr%28%283z%5E2%2B12z-96%29%2F%28z%5E2-11z%2B28%29%29%22%22%2A%22%22expr%28%286z%5E2-32z-70%29%2F%283z%5E2%2B29z%2B40%29%29%22%22=%22%22

expr%28%283%28z-4%29%28z%2B8%29%29%2F%28%28z-7%29%28z-4%29%29%29%22%22%2A%22%22expr%28%282%28z-7%29%283z%2B5%29%29%2F%28%283z%2B5%29%28z%2B8%29%29%29%22%22=%22%22

Cancel the (z-4)'s

expr%28%283%28cross%28z-4%29%29%28z%2B8%29%29%2F%28%28z-7%29%28cross%28z-4%29%29%29%29%22%22%2A%22%22expr%28%282%28z-7%29%283z%2B5%29%29%2F%28%283z%2B5%29%28z%2B8%29%29%29%22%22=%22%22

Cancel the (z+8)'s

%22%22%2A%22%22expr%28%282%28z-7%29%283z%2B5%29%29%2F%28%283z%2B5%29%28cross%28z%2B8%29%29%29%29%22%22=%22%22

Cancel the (z-7)'s

%22%22%2A%22%22expr%28%282%28cross%28z-7%29%29%283z%2B5%29%29%2F%28%283z%2B5%29%28cross%28z%2B8%29%29%29%29%22%22=%22%22

Cancel the (3z+5)'s

%22%22%2A%22%22%22%22=%22%22

and all that's left is

3·2 or 6.

That's the answer.  Just plain 6.

Edwin