作业帮【急!】几道初中有关的因式分解的填空,1.已知x+y=6,xy=4,则x^2·y+xy^2的值为______2.(x^2)/16 +( _____ ) +1=（ ______ ）^2 ,(1/4)x^2- ( ______ )^2=[(1/2)x+( _______ )][ ( _______ )-2y]3.分解因式：① x^2y^2-y^2=________② 3a
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![【急!】几道初中有关的因式分解的填空,1.已知x+y=6,xy=4,则x^2·y+xy^2的值为______2.(x^2)/16 +( _____ ) +1=（ ______ ）^2 ,(1/4)x^2- ( ______ )^2=[(1/2)x+( _______ )][ ( _______ )-2y]3.分解因式：① x^2y^2-y^2=________② 3a](/uploads/image/z/2825850-66-0.jpg?t=%E3%80%90%E6%80%A5%21%E3%80%91%E5%87%A0%E9%81%93%E5%88%9D%E4%B8%AD%E6%9C%89%E5%85%B3%E7%9A%84%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%E7%9A%84%E5%A1%AB%E7%A9%BA%2C1.%E5%B7%B2%E7%9F%A5x%2By%3D6%2Cxy%3D4%2C%E5%88%99x%5E2%C2%B7y%2Bxy%5E2%E7%9A%84%E5%80%BC%E4%B8%BA______2.%28x%5E2%29%2F16+%2B%28+_____+%29+%2B1%3D%EF%BC%88+______+%EF%BC%89%5E2+%2C%281%2F4%29x%5E2-+%28+______+%29%5E2%3D%5B%281%2F2%29x%2B%28+_______+%29%5D%5B+%28+_______+%29-2y%5D3.%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%EF%BC%9A%E2%91%A0+x%5E2y%5E2-y%5E2%3D________%E2%91%A1+3a)
【急!】几道初中有关的因式分解的填空,1.已知x+y=6,xy=4,则x^2·y+xy^2的值为______2.(x^2)/16 +( _____ ) +1=（ ______ ）^2 ,(1/4)x^2- ( ______ )^2=[(1/2)x+( _______ )][ ( _______ )-2y]3.分解因式：① x^2y^2-y^2=________② 3a
【急!】几道初中有关的因式分解的填空,
1.已知x+y=6,xy=4,则x^2·y+xy^2的值为______
2.(x^2)/16 +( _____ ) +1=（ ______ ）^2 ,
(1/4)x^2- ( ______ )^2=[(1/2)x+( _______ )][ ( _______ )-2y]
3.分解因式：① x^2y^2-y^2=________
② 3a^2-6a+3=________
③ a(x-y)^2-b(y-x)^2=_______
4.已知x-y=2,则（1/2）x^2-xy+(1/2)y^2的值为_________
【急!】几道初中有关的因式分解的填空,1.已知x+y=6,xy=4,则x^2·y+xy^2的值为______2.(x^2)/16 +( _____ ) +1=（ ______ ）^2 ,(1/4)x^2- ( ______ )^2=[(1/2)x+( _______ )][ ( _______ )-2y]3.分解因式：① x^2y^2-y^2=________② 3a
1.x²y+xy²=xy(x+y)=4x6=24
2.(x/4)²+(2x1x x/4)+1²=(x/4+1)²
3.1.x²y²-y²=y²(x²-1)
2.除以3 a²-2a+1=（a-1）²
3.(x-y)²=(y-x)²
∴原式=(x-y)²（a-b）
4.乘2 x1.x²y+xy²=xy(x+y)=4x6=24
2.(x/4)²+(2x1x x/4)+1²=(x/4+1)²
3.1.x²y²-y²=y²(x²-1)
2.除以3 a²-2a+1=（a-1）²
3.(x-y)²=(y-x)²
∴原式=(x-y)²（a-b）
4.乘2 x²-2xy+y²=(x-y)²