1)(a+3)=a+3
2)(a+-B)^2=a^2+-2AB+B^2
3)(a+-B)^3=(a+b)3=a3+3a2b+3ab2+b3
(a±b)^3=a^3 ± 3a^2b + 3ab^2 ± b^3
1)(a+3)=a+3
2)(a+-B)^2=a^2+-2AB+B^2
3)(a+-B)^3=(a+b)3=a3+3a2b+3ab2+b3
(a±b)^3=a^3 ± 3a^2b + 3ab^2 ± b^3