Question 1038338
(1) Formula for Difference Of Cubes


{{{5^3*a^3-1^3}}}
{{{(5a)^3-1^3}}}
{{{(5a-1)((5a)^2+5a*1+1^2)}}}-----according to the formula
{{{(5a-1)(5^a^2+5a+1)}}}



(2)  Sum Of Cubes Formula
{{{(a^3+b^3)=(a+b)(a^2-ab+b^2)}}}
Use the formula.



(3)  Difference Of Cubes formula also.
Follow the formula.