①m的3次方(a-2)+m(2-a)
=m(a-2)(m的2次方-1)
=m(m-2)(m+1)(m-1)
②4x²-(x+y)²
=(2x-x-y)(2x+x+y)
=(x-y)(3x+y)
m的3次方(a-2)+m(2-a)
=m^3(a-2)-m(a-2)
=m(a-2)(m^2-1)
=m(m-1)(m+1)(a-2)
4x²-(x+y)²
=(2x-x-y)(2x+x+y)
=(x-y)(3x+y)
①m的3次方(a-2)+m(2-a)
=m(a-2)(m²-1)
=m(a-2)(m+1)(m-1)
②4x²-(x+y)²
=(2x+x+y)(2x-x-y)
=(3x+y)(x-y)
1.m(m-1)(m+1)(a-2)
2.(x-y)(3x+y)