Contact us
Choose a category below so we can get back to you as quickly as possible.
2a(x方+1)的平方-8a*x方 =2a[(x²;+1)²;-4x²;] =2a(x²;+1+2x)(x²;+1-2x) =2a(x+1)²;(x-1)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.