8y^3+27=(3у)^3+3^3=(3y+3)(9y^2-9y+9)=27(y+1)(y^2-y+1)
64-8a^3=4^3-(2a)^3=(4-2a)(16+8a+4a^2)=8(2-a)(4+2a+a^2)
8y^3+27=(3у)^3+3^3=(3y+3)(9y^2-9y+9)=27(y+1)(y^2-y+1)
64-8a^3=4^3-(2a)^3=(4-2a)(16+8a+4a^2)=8(2-a)(4+2a+a^2)
8y^3+27=(3у)^3+3^3=(3y+3)(9y^2-9y+9)=27(y+1)(y^2-y+1)