Question

27k в кубе плюс(2p-3) в кубе

Answer 1

 

 

$27k^3-(2p-3)^3=\=27k^3-((2p)^3-3*(2p)^2*3+3*2p*3^2-3^3)=\=27k^3-(8p^3-36p^2+54p-27)=\=27k^3-8p^3+36p^2-54p+27$