A^3B^3+64=(AB+4)(A^2B^2-4AB+16)
27x^3-y^3=(3x-y)(9x^2+3xy+y^2)
(AB-4)(A^2B^2+4ab+16)=A^3B^3-64
(3x+yz)(9x^2-3xyz+y^2z^2)=27x^3+y^3z^3
A^3B^3+64=(AB+4)(A^2B^2-4AB+16)
27x^3-y^3=(3x-y)(9x^2+3xy+y^2)
(AB-4)(A^2B^2+4ab+16)=A^3B^3-64
(3x+yz)(9x^2-3xyz+y^2z^2)=27x^3+y^3z^3