把下列公因式进行分解:(要过程尽量详细点)
xy^3+x^3y
8abc+4bc^2
14mnx+7mx+21nx
2m^3n+16m^2n^2+4mn^3
把下列公因式进行分解:(要过程尽量详细点)
xy^3+x^3y
8abc+4bc^2
14mnx+7mx+21nx
2m^3n+16m^2n^2+4mn^3
xy³+x³y
提出公因式xy
得:xy(x²+y²)
2. 4bc²+8abc
提出4bc得到:
4bc(c+2a)
3.14mnx+7mx+21nx
提出7x
得:
7x(2mn+m+3n)
4.
2m³n+16m²n^2+4mn³
提出2mn得到:
2mn(m²+8mn+2n²)
8abc+4bc^2=bc(8a+4c)
14mnx+7mx+21nx=7x(2mn+m+3n)
2m^3n+16m^2n^2+4mn^3=2mn(m^2+8mn+2mn^2)
1。xy^3+x^3y=xy(y^2+x^2)
2.8abc+4bc^2=4bc(2a+c)
3.14mnx+7mx+21nx=7x(2mn+m+3n)
4.2m^3n+16m^2n^2+4mn^3=2mn(m^2+8mn+2n^2)
第四个 确定是 16m^2n^2么。。不是6m^2n^2?
您好!
xy^3+x^3y=xy(x^2+y^2)
8abc+4bc^2=4bc(2a+c)
14mnx+7mx+21nx=7x(2mn+m+3n)
2m^3n+16m^2n^2+4mn^3=2mn(m^2+8mn+2n^2)