4+12(x-y)+9(x-y)
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4+12(x-y)+9(x-y)4+12(x-y)+9(x-y)4+12(x-y)+9(x-y)4+12(x-y)+9(x-y)=4+(12+9)(x-y)=4+21(x-y)=4+12x-12y+9
4+12(x-y)+9(x-y)
4+12(x-y)+9(x-y)
4+12(x-y)+9(x-y)
4+12(x-y)+9(x-y)
=4+(12+9)(x-y)
=4+21(x-y)
=4+12x-12y+9x-9y
=4+21x-21y
4+12(x-y)+9(x-y)^
4-12(x-y)+9(x-y)^2 因式分解
4(x+y)^2-12(x+y)+9因式分解
4(x+y)^2-12(x+y)+9
4+12(x-y)+9(x-y)
4(x+y)²-12(x+y)(x-y)+9(x-y)²
12(x+y)^3(y-x)/【4(x+y)^2(x-y)】
分解因式(x-y)³+4(y-x),(x+y)²+4(y+x+1),x²-4y²+12yz-9z²
4(x+y)^2-12(x+y)(x-y)+9(+y)^2因式分解,
因式分解2x^2y-x^3-xy^2 4-12(x-y)+9(x-y)^22x^2y-x^3-xy^24-12(x-y)+9(x-y)^2
(1).x^2-xy+x (2).m^2n-mn^2+mn (3).9x^3y^3-21x^3y^2+12x^2y^2 (4).x^2(x-y)+y^2(x-y)多项式因式分解
已知X.x+y.y-4x+2y+5=0,求4X.X-12X Y+9Y.y的值
9(x-y)-12(y-x)^2
4(x+y)的平方-12(x+y)+9,还有 x的平方+2x(y-x)+(z-y)的平方
4-12(x-y)+9(x-y)²=?
因式分解:4-12(x-y)+9(x-y)²
因式分解4-12(x-y)+9(x-y)的平方
因式分解4-12(x-y)+9(x-y)²