4(y+1)+4(1-x)-4(x+y),其中,x=1/8,y=14/3
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(x/x+y +2y/x+y)乘以xy/ x+2y除以(1/x+1/y)(2)(3x^2/4y)^2乘以2y/3x+ x^2/2y^2除以2y^2/x
(x +y)的平方-4(x+ (x +y)的平方-4(x+ y-1)~(因式分解)
(2X-Y)²-4(X-Y)*(X+Y)-(X-Y)*(X-1)
若x+y=4,则多项式1/2(x+y)+4(x-y)-3(x-y)-3/2(x+y)-x+y值是()
(x²-4y²)÷(2x+y)/xy×1/x(2y-x)(2x+y)/xy 1/x(2y-x) 都是一项
把下列各式因式分解 (1)、a^2(x-y)-4a(y-x)+4(x-y) (2)、(x+y)(x-y)-(x+z)(x-z)
(x+y)(x-y)+4(y-1)
化简求值:【(x+Y)(X-Y)-(X-Y)的平方+2Y(2-Y)】除4Y,其中X=1 Y=2
因式分解 (x+y)²-4(x+y-1)
因式分解(x+y)²-4[(x+y)-1]
(x+y)²-4(x+y-1)
(x+y)²-4(x+y-1)
(X+Y)的平方-4(X+Y-1) 因式分解
(X+Y)的平方-4(X+Y-1)因式分解
因式分解(x-y)的平方-4(y-x-1)
9(x+y)²-4(x+y-1)因式分解
2(x+y)-(x-3y)=13 4(x+y)+3(x-3y)=1解方程组 2(x+y)-(x-3y)=13 4(x+y)+3(x-3y)=1
x²y-2x²-y+2 4x(x-y)²-12(x-y)³ 因式分解-x³+x²-4分之1x