来自焦智的问题
因式分解:y(y+1)(x2+1)+x(2y2+2y+1).
因式分解:y(y+1)(x2+1)+x(2y2+2y+1).
1回答
2020-01-16 07:38
因式分解:y(y+1)(x2+1)+x(2y2+2y+1).
因式分解:y(y+1)(x2+1)+x(2y2+2y+1).
y(y+1)(x2+1)+x(2y2+2y+1)=x2(y+1)y+x(2y2+2y+1)+y(y+1)
=[yx+(y+1)][(y+1)x+y].