SOLUTION: divide x2 – 9x + 20 ÷ x2 – 25 ----------- ÷ --------- 6x – 4 ÷ 2x + 10 I am totaly stumped, please help!!!

Algebra ->  Radicals -> SOLUTION: divide x2 – 9x + 20 ÷ x2 – 25 ----------- ÷ --------- 6x – 4 ÷ 2x + 10 I am totaly stumped, please help!!!      Log On


   

Question 75893: divide
x2 – 9x + 20 ÷ x2 – 25
------------ ÷ ---------
6x – 4 ÷ 2x + 10
I am totaly stumped, please help!!!
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
divide
x2 – 9x + 20 ÷ x2 – 25
------------ ÷ ---------
6x – 4 ÷ 2x + 10
:
Remember, when you divide fractions, you invert the dividing fraction and multiply
When we do that we have:
%28%28x%5E2+-+9x+%2B+20%29%29%2F%28%286x+-+4%29%29 * %28%282x+%2B+10%29%29%2F%28%28x%5E2+-+25%29%29
:
A lot of factoring can be done here; recognize (x^2-25) as the difference of squares:
%28%28x-4%29%28x-5%29%29%2F%282%283x-2%29%29 * %282%28x+%2B+5%29%29%2F%28%28x-5%29%28x%2B5%29%29
:
Cancel the following: 2, (x+5), and (x-5), leaving us with:
%28%28x-4%29%29%2F%28%283x-2%29%29
:
Has this helped to remove the stump?