Contact us
Choose a category below so we can get back to you as quickly as possible.
2x的m次方减去2y的m+一次方加7乘x乘m+1次方减y的m加1次方的差减3乘x的m次方减2y的m次方的差 =2x^m-2y^m+1+7x^m+1-y^m+1-(3x^m-2y^m) =9x^m-3y^m+1-3x^m+2y^m =6x^m-3y^m+1+2y^m
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.