Question

How do you factor `5x^3+625`?

Answer 1

`5(x+5)(x^2 -5x +25)`

Explanation:

Always look for a common factor first.

`5x^3 +625`

=`5(x^3 +125) " "larr " sum of cubes"`

=`5(x+5)(x^2 -5x +25)`