Contact us
Choose a category below so we can get back to you as quickly as possible.
x(x+y)2-x(x2-y2) =x(x+y)2-x(x+y)*(x-y) =x(x+y)*(x+y-x+y) =(x+y)*2xy =1*(-1) =-1
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.