作业帮25(x-y)*2+10(y-x)+125（x-y)^2+10(y-x)+1
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25(x-y)*2+10(y-x)+125（x-y)^2+10(y-x)+1
25(x-y)*2+10(y-x)+1
25（x-y)^2+10(y-x)+1
25(x-y)*2+10(y-x)+125（x-y)^2+10(y-x)+1
一个完全平方公式 等于（5y-5x+1)^2
=50x-50y+10y-10x+1
=40x-40y+1
25(x-y)*2+10(y-x)+125（x-y)^2+10(y-x)+1
(12-2x)/X=(-16-2Y)/Y X^2+Y^2=25 Y
(x-y)^2+10(y-x)+25因式分解 （x-y）²-10（y-x）+25（x-y）²+10（y-x）+25只要结果
化简(x+y)-(2x+y/2)-(3x+y/6)-(4x+y/12)-(5x+y/20)-……-(10x+y/90)
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
(x+y)²-10(x+y)+25
(x-y)^2+12(x-y)+36
9(x-y)-12(y-x)^2
化简y(x+y)+(x+y)(x-y)-x^2
(2x-y)^2-10(2x-y)+25 因式分解
(x+y)^2-10(x+y)^2+25
（x+y)^2-10(x+y)+25因式分解
25(y-x)^2+10(y-x)+1,因式分解
25（x+y)^2+10(y-x)+1=?因式分解
25(x-y)^2+10(y-x)+1=
25(X-Y)^2+10(x-y)+1?
计算（x+y）^2+10（y-x）+25
(x－y)^2－10(y－x)+25