Question

求分解因式。急！！！！！！

1.x*2+5x+4 2.y*2+4y-5 3.y*4-26y*2+25 4.(a-b)*2+6(b-a)-5
5.2x*2-5x-12 6.3x*2-5x-2 7.6x*2-13xy+6y*2 8.8x*2y*2+6xy-35

Answer 1

1(x+4)(x+1)
2(y+5)(y-1)
3(y-5)(y+5)(y+1)(y-1)
4我估计你抄错了
5（2x+3)(x-4)
6(3x+1)(x-2)
7(3x-2y)(2x-3y)
8(2xy+5)(4xy-7)

追问

哦，4是(a-b)*2+6(b-a)+5

追答

4.(a-b-5)(a-b-1)