x²y-5xy+3xy²-1
=x²y^1(2+1=3)-5x^1y^1(1+1=2)+3x^1y²(1+2=3)-1·x^0·y^0(0+0=0)
所以二次相为-5x^1y^1
猜你喜欢
- 1are they not 和aren't they 是一样的吗?
- 2霍金来中国访问的介绍词
- 3He has a round face with big eyes,a small nose and a wide mouth.
- 49 ,9 ,3 ,7只能用一次怎么算等于24
- 5比较根号5 ,3次根号11,6次根号123 三个数的大小
- 6several
- 71.下面哪组的线段可以围成一个三角形.A.2cm 5cm 9cm B.7cm 8cm 9cm C.1cm 2cm 3cm D.10cm 5cm 4cm
- 8我们边走边吃水果 We are going to have lots of fun ____ _____ and eating fruits
- 9三年级下语文暑假作业本里的30页的实践园怎么写?
- 10求极限 lim/x-0 (根号x+1) -1/x