Contact us
Choose a category below so we can get back to you as quickly as possible.
(a平方-4)分之2a+(2-a)分之1 =2a/(a-2)(a+2)-1/(a-2) =(2a-a-2)/(a-2)(a+2) =(a-2)/(a-2)(a+2) =1/(a+2)
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.