4(a+b)^2(x-y)+9(a-b)^2(y-x)怎么算
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4(a+b)^2(x-y)+9(a-b)^2(y-x)怎么算4(a+b)^2(x-y)+9(a-b)^2(y-x)怎么算4(a+b)^2(x-y)+9(a-b)^2(y-x)怎么算4(a+b)^2(x
4(a+b)^2(x-y)+9(a-b)^2(y-x)怎么算
4(a+b)^2(x-y)+9(a-b)^2(y-x)怎么算
4(a+b)^2(x-y)+9(a-b)^2(y-x)怎么算
4(a+b)^2(x-y)+9(a-b)^2(y-x)
=(x-y)[2(a+b)²-9(a-b)²]
=(x-y)(2a+2b+3a-3b)(2a+2b-3a+3b)
=(x-y)(5a-b)(-a+5b)
4(a+b)^2(x-y)+9(a-b)^2(y-x)
=4(a+b)^2(x-y)-9(a-b)^2(x-y)
=(x-y)[4(a+b)^2-9(a-b)^2]
=(x-y)[2(a+b)-3(a-b)][2(a+b)+3(a-b)]
=(x-y)(5b-a)(5a-b)
4(a+b)^2(x-y)+9(a-b)^2(y-x)怎么算
9x^2(a-b)+y^2(b-a)
2x(a-b)-4y(b-a )因式分解
因式分解,xy-y (a-b)x-(a-b)x² x²-1因式分解,xy-y (a-b)x-(a-b)x² x²-1 2a²-2b² 9x²-4分之1y²
(x+y)(a-2b)
(2a-b)(4a²+b²)(b+a) (2x-y)²-4(x-y)(x+2y)
(2a+b)(2a-3b)+3a(2a+b)和x(x+y)(x-y)-x(x+y)²4a(x+y)-6x-6y和啊a(a-b)-ab+b²
因式分解:x^2y^2-4x a(a-b)-2b(b-a)
(x+y)²+2(y-x) 因式分解 怎么弄 我这还有几道题(x+y)²-(x+y)(x-z)+(x+y)(y+z)X(X-a)(x-b)-y(a-x)(b-x)x(x+y)(x-y)-x(x+y)²(2a+b)(2a-3b)-3b(2a+b)(a+b)²-9(a-b)²(a²+b²)²-a²b²9(x-y)-y&
9a²(x-y) +4b²(y-x)
因式分解:4a(x-y)-2b(x-y)
4a(x-y)-2b(y-x)
4a(x-y)-2b(y-x)
(1) (a+2b/a-b)+(b/b-a)-(2a/a-b); (2) (y/x-y+z)+(2x+z/y-x-z)-(y-z/y-x-z); (3) (2/2a+3)+(3/3-2a)+(2a+15/4a^2-9); (4) (1/1-x)-(1/1+x)-(2x/1+x^2)+(-4x^3/1+x^4)
(3x^/4y)^*2y/3y+x^2y^÷2y^/x 还有一个 (a+b/a-b)^*(2a-2b/3a+3b)-a^/a^-b^÷a/b
a+2a= 8b-b= y+9y= x+7x-4x=
x^2-6x+9;9(x+y)^2-6(x+y)+1(a^2+b^2)^2-4a^2b^2-4a^2b^2
因式分解 ① x(b+c-d)-y(d-b-c)-z(c+b-d) ②(a-b)^2-2(a-b)(a+b)+(a+b)^2 ③4(5a-b)^2-9(2a+3b)^2