Go on calc 101 dot com
When page be open click option :
long division
Use long division :
(a^3-b^3)/ (a-b)
2 answers
See the difference of two cubes, you should memorize this.
(a^3-b^3)= (a-b)(a^2+ab+b^2)
(a^3-b^3)= (a-b)(a^2+ab+b^2)