Question 760793

please help me to solve  this.

factoring binomials.
factor and check: 
3r^3+81s^3

thankyou


{{{3r^3 + 81s^3}}}


{{{3(r^3 + 27s^3)}}}


We now need to factor the SUM OF CUBES binomial in the parentheses


{{{3((r)^3 + (3s)^3)}}}


Applying SUM OF CUBES factorization, we get: {{{highlight_green(3(r + 3s)(r^2 - 3sr + 9s^2))}}}

You can do the check!! 


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