SOLUTION: Simplify. State any restrictions on the variables. 2x-10/3x-21 / x-5/4x-28

Algebra ->  Rational-functions -> SOLUTION: Simplify. State any restrictions on the variables. 2x-10/3x-21 / x-5/4x-28      Log On


   

Question 1076146: Simplify. State any restrictions on the variables.
2x-10/3x-21 / x-5/4x-28
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
%282x-10%29%2F%283x-21%29
---------
%28x-5%29%2F%284x-28%29
we can see immediately that x cannot equal 7, this would give 0 denominators
invert the dividing fraction and multiply
%282x-10%29%2F%283x-21%29 * %284x-28%29%2F%28x-5%29
we can see x cannot equal 5 for the same reason