Question

Factor the polynomial using a special factorization:
81x^3+192y^3

Answer 1

sum of two cubes factors as
\[a^3+b^3=(a+b)(a^2-ab+b^2)\] here
factor out a 3 first

Answer 2

\[3(27x^3+64y^3)\] then use
\[a=3x,b=4y \] and you have it

Answer 3

you should be good from there but if not let me know