25(X+Y)^2-16(X-Y)^2
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25(X+Y)^2-16(X-Y)^225(X+Y)^2-16(X-Y)^225(X+Y)^2-16(X-Y)^2先展开,后合并.
25(X+Y)^2-16(X-Y)^2
25(X+Y)^2-16(X-Y)^2
25(X+Y)^2-16(X-Y)^2
先展开,后合并.
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
(12-2x)/X=(-16-2Y)/Y X^2+Y^2=25 Y
化简y(x+y)+(x+y)(x-y)-x^2
(x+y)^2-16(x-y)^2
(x+y)^2-16(x-y)^2
16-8（x-y)+(x-y)2
(x+y)(x-y)-(x-y)^2如题 (x+y)(x-y)-(x-y)^2
【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y)
因式分解x(x+y)(x-y)-x(x+y)^2
25(2x+y)^2-16(x-2y)^2
因式分解16(x+y)^2-25(x-y)^2
25(y-x)^2-16(x+y)^2因式分解
16(x-y)^2-25(x+y)^2
16（x+y）^2-25（x-y）^2
25(X－Y)^2-16(X＋Y)^2
分解因式25(x+y)^2-16(x-y)^2
25(X+Y)^2-16(X-Y)^2
分解因式：16(x+y)^2-25(x-y)^2