9x^4+12x^2y^2+4y^4 9-12(x+y)+4(x+y)^2 x^2+2x(y+z)+(y+z)^2 36^2+72*14+14^2
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4(x+y)^2-12(x+y)(x-y)+9(+y)^2因式分解,
已知X.x+y.y-4x+2y+5=0,求4X.X-12X Y+9Y.y的值
81/8*(-x-y)^6*(x-y)^3*4/9(x+y)^4*(y-x)^2
4(x-y)-3(x-y)=9 5(x-y)+2(x-y)=11
3(x+y)-2(x-y)=11 4(x+y)+3(x-y)=9
4-12(x-y)+9(x-y)^2 因式分解
4-12(x-y)+9(x-y)^2因式分解
9(x-y)^2+12(x-y)+4因式分解
9(x-y)^2-12(x-y)+4=快
4+12(x-y)+9(x-y)^2用因式分解
4(x+y)^2-12(x+y)+9因式分解
9-12(x+y)+4(x+y)^2因式分解
分解因式:4(x+y)^2-12(x+y)+9
12(x-y)-4-9(x-y)^2分解因式
4十12(x一y)+9(x+y)^2
4+12(x-y)+9(x-y)2次方不懂
4(x+y)^2-12(x+y)+9
因式分解:4+12(x-y)+9(x-y)^2