Question

因式分解的数学题

1.ab-a+b-1
2.3m+nx-3n-mx
3.xy-xz-y^2+2yz-z^2

Answer 1

1.(a+1)(b-1)
2.(m-n)(3-x)
3.(y-z)(x-y+Z)

Answer 2

1.(a+1)(b-1) 2.(x-3)(n-m) 3.(y-z)(y-z+x)