Question

Simplify (x+8)^3

Answer 1

Actually, I think you want to EXPAND this third power of a binomial.

One way is to learn and remember the general formula for such a third power:

\[(a+b)^3=a^3 + 3a^2b+3ab^2 +b^3\]

Answer 2

Or you could patiently multiply out (x+8)(x+8)(x+8) (which I don't recommend);
or you could look up and learn "Pascal's Triangle" and apply it to this expansion process.

Answer 3

You could also first multiply out (x+8)(x+8) using a rectangle like this