Question

help!!!!!

(a+b)^3=???
(a+b)^4=???
(a+b)^5=???

Answer 1

What does the ^3 or ^4 part really mean? Surely if you see x^3 you can rewrite it as x*x*x right?

Answer 2

^3 means to the third power

Answer 3

yeah

Answer 4

So rewrite it like that without exponents and see if you can do it now.

Answer 5

(a+b)^3 = (a+b)(a+)^2 =(a+b)(a^2 +2ab +b^2) =

hope you can continue it ---

so the rest two you can calculi the same too


hope so much that you will understand it all right

good luck

bye