Question

How do you factor `(x^3)(x^6)+(8z^3)`?

Answer 1

Note the general form for the factoring of a sum of cubes:
`a^3+b^3 = (a+b)(a^2-ab+b^2)`

`(x^3)(x^6) + (8z^3)`

`=(x^3)^3+(2z)^3`

`=(x^3+2z)(x^6- 2x^3z + 4z^2)`