分解因式的题，急！！！！

来源：百度知道编辑：UC知道时间：2024/06/01 12:30:01

1.3ax^2-3ay^4
2.2x^2-18
3.m^3-4m
4.3x^4-12x^2

1.3ax^2-3ay^4 =3a(x^2-y^4)=3a(x+y^2)(x-y^2)
2.2x^2-18=2(x^2-9)=2(x+3)(x-3)
3.m^3-4m =m(m^2-4)=m(m+2)(m-2)
4.3x^4-12x^2=3x^2(x^2-4)=3x^2(x+2)(x-2)

1.3ax^2-3ay^4 =3a(x+y)(x-y)

2.2x^2-18 =2(x+3)(x-3)

3.m^3-4m =m(m+2)(m-2)

4.3x^4-12x^2=3x^2(x+2)(x-2)

1.3ax^2-3ay^4
=3a(x-2y)(x+2y)
2.2x^2-18
=2(x-3)(x+3)
3.m^3-4m
=m(m+2)(m-2)
4.3x^4-12x^2
3x^2(x-2)(x+2)

1 3a(x+y^2)(x-y^2)
2 2(x+3)(x-3)
3 m(m+2)(m-2)
4 3x^2(x+2)(x-2)

1.3ax^2-3ay^4 =3a(x-y^2)(x+y^2)
2.2x^2-18 =2(x-3)(x+3)
3.m^3-4m =m(m-2)(m+2)
4.3x^4-12x^2=3x^2(x-2)(x+2)

1.=3a(x^2-y^4)=3a(x-y^2)(x+y^2)
2.=2(x^2-9)=2(x+3)(x-3)
3.=m(m^2-4)=m(m+2)(m-2)
4.=3x^2(x^2-4)=3x^2(x+2)(x-2)