SOLUTION: Can someone help me solve this? I've failed twice already and this is my last chance. Subtract the rational expressions and simplify. 13x^2/x+2 - 4+12x^2/x+2 I thank you

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Can someone help me solve this? I've failed twice already and this is my last chance. Subtract the rational expressions and simplify. 13x^2/x+2 - 4+12x^2/x+2 I thank you      Log On


   

Question 443983: Can someone help me solve this? I've failed twice already and this is my last chance.
Subtract the rational expressions and simplify.
13x^2/x+2 - 4+12x^2/x+2
I thank you
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
expr%2813x%5E2%2F%28x%2B2%29%29+-+expr%28%284%2B12x%5E2%29%2F%28x%2B2%29%29
You have a common denominator, so you can combine in this way:
%2813x%5E2-%284%2B12x%5E2%29%29%2F%28x%2B2%29
%2813x%5E2+-+4+-12x%5E2%29%2F%28x%2B2%29
%28x%5E2+-4%29%2F%28x%2B2%29
Difference of two squares
%28%28x-2%29%28x%2B2%29%29%2F%28x%2B2%29
%28%28x-2%29%2Across%28%28x%2B2%29%29%29%2Fcross%28%28x%2B2%29%29
highlight%28x-2%29