Question

what do you get when you add:
r+r(squared)

Answer 1

do u mean your adding r + r squared??

Answer 2

yes

Answer 3

well... a 1 is always infront of the variable... so just add 1R+1R^2

Answer 4

You can't do that.
r + r² = r + r².
For example,
if r = 2, then r^2 = 4 and 2+4=6
if r = 3, then r^2 = 9 and 3+9=12
if r = 4, then r^2 = 16 and 4+16=20
so r+r^2 is not 2r something or other.