(x-2y)^2(x+2y)^2 (a-2b+3)(a+2b-3)以上利用乘法公式计算 下面分解因式1.-4a^2+24a-36 2.(x+2)(x+4)+1 3.4(a+b)^2-9(a-b)^2 4.x^2(x-y)+2x(x-y)-(y-x) 5.(x^2+4)^2-16x^2 6.(a+b)^2+4(a+b+1)
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(x-2y)(x+y)+(x+y)计算
计算:(x-y)^2-(x+y)(x-y)
2(x-y)²-3(x-y)(-y-x)
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)
2(x-y)+a(x-y)因式分解
(2y-x)(y-2x)-a(y+x+a)
(x-y/x+2y)³
通分 a/(y-x)^2,b/(x-y)(x+y)
因式分解a(x-y)+b(y-x)+(2x-y)
a^2(x-y)+(y-x)因式分解
[1]a(x-2y)-b(2y-x)+d(2x-4y) [2]x平方-2xy+y平方-2x+2y+1 【3】一(a-x)(a-y)-x(y-a)(X-a)[1]a(x-2y)-b(2y-x)+d(2x-4y) [2]x平方-2xy+y平方-2x+2y+1【3】一(a-x)(a-y)-x(y-a)(X-a) 分解因式,急求!
设集合A={(x,y)|y≥|x-2|,x>=0},B ={(x,y)|y
分解因式 4a(x-y)²-a²(y-x)³ (x+y+z)(x-y+z)+(y-x+z) (y-x-z)(1)4a(x-y)²-a²(y-x)³ (2)(x+y+z)(x-y+z)+(y-x+z) (y-x-z)
用ab表示x,y的平方和,X和y的积的平方,y/x+x/y(x*x+2xy+y*y)=a(x*x-2xy+y*y)=b
A(-x+y)(x-y)B(x-y)(y-x)C(x+y)(x-2y)D(x+y)(-x+y)这些哪个能用平方差公式计算
如果A={(x,y)|x,y+2>0},B={(x,y)|2x+3y-6>0},C={(x,y)|x-4
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2