计算(a+b)(a^2-6^2) (x-y)(xy-1) (2x-1)(4x^2+2x+1) (x-1)(x^2+x)速
计算(1)x/x+y-x/x-y (2)a+2+4/a+2 (3)x^2-y^2/xy÷(x+y)
是关于因式分解的``1.计算x×x×x×x+5×x×x-6(x+y)(x+y+2xy)+(xy+1)(xy-1)2.已知
计算3xy[2xy-x(y-2)+x-1]
1.计算(a^2+a+1)(a^2-a+1) 2.计算(x-y)(x+y)+(3x-2y)(2x+y)-x(6x-y)
计算3x[xy-2x(1/y-x/3]+3y(x²-y²)
因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)(
x^2-6x+5= A(x-2)(x-3)B(x-6)(x+1)
(1).设A=2X²-3Xy+y²+X-3y,B=4X²-6xy+2y²+4X-
3y/2x+2y+2xy/x²+xy 2x/x²-64y²-1/x-8y (1/a+1/b
因式分解3a(x-y)+9(y-x) x的平方+y的平方-1-2xy (x+2)(x+6)+x的平方-4
3x/6x^2z a+b/a^2-b^2 x^2+2x+1/x^2+x 3x-6/x^2-4x+4
12x²+4x-1 x²-(a+b)xy+aby² xy-1+x-y x²-(2