16(x-y)(x-y)-25(x+y)(x+y)=?x的4次方+4乘y的4次方=?因式分解,
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16(x-y)(x-y)-25(x+y)(x+y)=?x的4次方+4乘y的4次方=?因式分解,
16(x-y)(x-y)-25(x+y)(x+y)=?x的4次方+4乘y的4次方=?因式分解,
16(x-y)(x-y)-25(x+y)(x+y)=?x的4次方+4乘y的4次方=?因式分解,
16(x-y)(x-y)-25(x+y)(x+y)
=[4(x-y)]²-[5(x+y)]²
=(4x-4y+5x+5y)(4x-4y-5x-5y)
=(9x+y)(﹣x-9y)
=﹣(9x+y)(x+9y)
x的4次方+4乘y的4次方
=x^4+4x²y²+4y^4-4x²y²
=(x²+2y²)²-(2xy)²
=(x²+2xy+2y²)(x²-2xy+2y²)
16(x-y)(x-y)-25(x+y)(x+y)=[4(x-y)]的平方-[5(x+y)]的平方=
[4(x-y)-5(x+y)][4(x-y)+5(x+y)]=(-x-9y)(9x+y)
:x(x-y)-y(y-x) m(x-y)²-x+y
(x-y)(x-y)2(y-x) (x+2y-?)(x-2y+?)
16(x+y)^2-25(x-y)^2
x(x-y)²-y(y-x)²
(x-2y)(x+y)+(x+y)计算
-3(x-y)(x-y)+3(x-y)
计算:(x-y)^2-(x+y)(x-y)
(X-Y)(Y-X)²(X-Y)三次方
2(x-y)²-3(x-y)(-y-x)
用行列式性质计算(需过程):(x,y,x+y; y,x+y,x; x+y,x,y )
-{-[-(x-y)]}+{-[(x+Y)]}
(x-y/x+2y)³
m(x-y)平方-x+y
3(x-1)³y-(1-x)³z m(x-y)²-x+y x²(x+y)(y-x)-xy(x+y)(x-y) 因式分解
y(x+y)+(x-y)²-(x+y)(x-y),其中x=-1/3,y=3
16(x-y)(x-y)-25(x+y)(x+y)=?x的4次方+4乘y的4次方=?因式分解,
(x+y)^2-z^=a^2-(b-c)^2=(x-y)^3-x+y=16(x+y)^2-25(x-y)^2=
(4x+y)(y-4x)-x(5y-16x) 因式分解