Question

(2a+1)^3
Can someone show me steps to complete this, please?

Answer 1

You could do the multiplication, use Pascal's triangle, or use combinations. Which one sounds familiar?

Answer 2

honestly, neither...I haven't done this stuff in a long time. ..all I know to do next is:

(2a+1)(2a+1)(2a+1)

Answer 3

that will work

Answer 4

do the first two, then multiply the result by the third

Answer 5

\[(2a+1)(2a+1)=4a^2+2a+2a+1=4a^2+4a+1\]so now you have to multiply
\[(4x^2+4a+1)(2a+1)\]

Answer 6

8a^3+8a^2+2?


I know that's not right...im REALLY LOST I understand F.O.I.L but not when it comes to three parts