Question

(2x+1)^3

Answer 1

Hi, whats your question for this?

Answer 2

honestly I don't know where to begin to solve it

Answer 3

so do they just want you to factor it all out?

Answer 4

yes

Answer 5

ok, (2x+1)^3 is like saying (2x+1)(2x+1)(2x+1). do you get up to here?

Answer 6

yeah

Answer 7

ok and so use the foil method to do (2x+1)(2x+1) first

Answer 8

but theres a formula for (a+b)^3=a^3 + 3a^2b + 3ab^2 + b^3, if that will make it easier.

Answer 9

all you have to do is plug in a=2x and b=1 and solve.

Answer 10

I think the foil method would be better. that's what I learned in class

Answer 11

ok,