text: i forgot my basic algebra. refresh me pls? i need the list of factorization like difference of two cubes, etc. pls set some visual example (doesnt have to be long, just to see how it works)   thank you. (a+b)^3 =(a+b)(a+b)^2 =(a+b)(a^2+2ab+b^2) =a^3+2a^2+ab^2+a^2b+2ab^2+b^3 =a^3+3a^2b+3ab^2+b^3 =3^3+b^3+3ab(a+b)  (a+b)^3=a^3+b^3+3ab(a+b)  a^3+b^3=(a+b)^3-3ab(a+b) =(a+b){(a+b)^2-3ab} =(a+b)(a^2-ab+b^2)  a^3+b^3=(a+b)(a^2-ab+b^2)  if a=x,b=-y then x^3-y^3=(x-y)(x^2+xy+y^2)