Question

Need help please....
(a+3)^3 (^=exponent sign)

Answer 1

u can multiply one by one of (a+3) * (a+3) * (a+3) = ....

Answer 2

a3?

Answer 3

or use the formula :
(m+n)^3 = m^3 + 3*m^2*n + 3*m*n^2 + n^3

Answer 4

can you check this for me?
I ended up with
a^3+6a^2+12a_+12

Answer 5

it should be like this :
(a+3)^3 = a^3 + 3*a^2*3 + 3*a*3^2 + 3^3
= a^3 + 9a^2 + 27a + 27

Answer 6

I am probably the worst math student ever... so any help is greatly appreciated :)

Answer 7

Oh, I see where I went wrong! Thank you for your help... this is only week 1, I hope I make it through to week 9. It's gonna be the death of me.

Answer 8

you're welcome ;)