1.计算:x-y分之x+y + y-3分之2x 2.计算:x+3分之x²-x-2 除以 (2-x) + x+3分之x+1
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/25 21:54:53
1.计算:x-y分之x+y+y-3分之2x2.计算:x+3分之x²-x-2除以(2-x)+x+3分之x+11.计算:x-y分之x+y+y-3分之2x2.计算:x+3分之x²-x-2
1.计算:x-y分之x+y + y-3分之2x 2.计算:x+3分之x²-x-2 除以 (2-x) + x+3分之x+1
1.计算:x-y分之x+y + y-3分之2x 2.计算:x+3分之x²-x-2 除以 (2-x) + x+3分之x+1
1.计算:x-y分之x+y + y-3分之2x 2.计算:x+3分之x²-x-2 除以 (2-x) + x+3分之x+1
1.计算:x-y分之x+y + y-3分之2x
=(x+y)/(x-y)+2x/(y-3)
=((x+y)(y-3)+2x(x-y))/(x-y)(y-3)
=(xy-3x+y^2-3y+2x^2-2xy)/(x-y)(y-3)
=(-3x+y^2-3y+2x^2-xy)/(x-y)(y-3)
=(-3x-3y+y^2-xy+2x^2)/(x-y)(y-3)
2.计算:x+3分之x²-x-2 除以 (2-x) + x+3分之x+1
=(x^2-x-2)/(x+3)(2-x)+(x+1)/(x+3)
=(x-2)(x+1)/-(x+3)(x-2)+(x+1)/(x+3)
=-(x+1)/(x+3)+(x+1)/(x+3)
=0
计算:y-x分之x+y+x-y分之y-y-x分之2x-y
计算:x-y分之x+y-x分之y
计算,(x-y-x-y分之4y的平方
计算 x-2分之x方+1-2-x分之3-4x (x+y)x方-y方分之x方+y-x分之y方
怎么计算x-y分之x^2-x+y
计算:(x+3y)(2x-y)
计算:(2x-3y)(x+y)
计算:(-x-2y) * (3x-y)
计算:(x+y)-3(x-2y).
计算:(x+3y)(x-3y)-(x-3y)
计算(x+y)(x+y)^2(-x-y)^3
3x(x-y)+2y(x-y) 计算
计算 3x+4y/x-y+3y/y-x-4x/x-y
计算:x+2y/x-y+2x/y-x-3y/x-y
{[y分之3x]/4x}*【4x分之y】计算
计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x
计算 x(x-3y)
计算:3y^3分之2x^2*6x分之5y/21x^2分之10y