Question

初中数学一道计算题~急急急

x³y³-x²y²-xy+1

过程 答案~~ 因式分解……

谢谢

Answer 1

x³y³-x²y²-xy+1
=x³y³-2x²y²+xy+x²y²-2xy+1
=xy*(x²y²-2xy+1)+(xy-1)²
=xy*(xy-1)²+(xy-1)²
=(xy+1)(xy-1)²

Answer 2

x³y³-x²y²-xy+1
=x^2y^2(xy-1)-(xy-1)
=(x^2y^2-1)(xy-1)
=(xy+1)(xy-1)(xy-1)
=(xy+1)(xy-1)^2

Answer 3

=x²y²(xy-1)-(xy-1)
=(x²y²-1)(xy-1)
=(xy-1)²(xy+1)