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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9x^4+12x^2y^2+4y^49-12(x+y)+4(x+y)^2x^2+2x(y+z)+(y+z)^236^2+72*14+14^29x^4+12x^2y^2+4y^49-12(x+y)+4(

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
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

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
9x^4+12x²y²+4y^4
=(3x²)²+12x²y²+(2y²)²
=(3x²+2y²)²
9-12(x+y)+4(x+y)²
=3²-12(x+y)+[2(x+y)]²
=(2x+2y-3)²
x²+2x(y+z)+(y+z)²
=(x+y+z)²
36²+72*14+14²
=36²+2*36*14+14²
=(36+14)²
=50²
=2500

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