Question

七年级下册因式分解计算题（要有过程和答案）越多越好

Answer 1

1. (x²-y²-2x+1)÷(x+y-1)
   =[(x-1)²-y²]÷(x+y-1)
   =(x+y-1)(x-y-1)÷(x+y-1)
   =x-y-1
   2.(x^4-2x²+1）÷(x²+2x+1)
   =(x²-1)²÷(x+1)²
   =(x+1)²(x-1)²÷(x+1)²
   =(x-1)²
   3.(a^4-16)÷（a-2)
   =(a²+4)(a²-4）÷（a-2)
   =(a²+4)(a+2)(a-2)÷（a-2)
   =(a²+4)(a+2)

   4.(a^2+b^2)²-4a^2b^2
   =(a^2+b^2)²-(2ab)²
   =(a²+b²+2ab)(a²+b²-2ab)
   =(a+b)²(a-b)²
   

Answer 2

没有问题怎么回答

Answer 3

没有题目吗？怎么解答？