9(x-y)^2-6(y-x)^2+1

来源：学生作业帮编辑：神马作文网作业帮分类：数学作业时间：2024/11/11 07:45:34

9(x-y)^2-6(y-x)^2+1
是9(x-y)^2-6(y-x)+1 打错了

9(x-y)^2-6(y-x)+1
=9(x-y)^2+6(x-y)+1
=[3(x-y)+1]^2
=(3x-3y+1)^2

1、x(x-y)(x+y)-x(x+y)^2 9xy(x-y)(x+1)-3y(x-y)(3x+2y)+6y的平方(x-y)(x+1),因式分解因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)( (1)(x^2/x)-y-x-y 计算:(2/3x√9x+6x√y/x)+(y√x/y-√1/x) 已知4x=9y求(1)x+y/y (2)y-x/2x 9(x-y)^2-6(y-x)^2+1 {3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1 9(x+y)^2-6(x+y)+1进行因式分解 9(X+Y)^2-6(X+Y)+1 (因式分解) x+y=3 x+2y=9 3/x+1=y y-x=3 y=2x-3 y-3x=1 2(x+1)-y=6 7x-5y=-9 [(-x-y)(-x+y)-(x+y)^2-x(y-y^2)}÷1/2y