Simplify the radical expression.

(3+√6)(3 - √6)
A. -27 <---?
B. 3
C. 9+6√6
D. 15+6√6

2 answers

no
(3+√6)(3 - √6)
= 9 - 6
= 3

(√6)(√6) = 6 , using property √x*√x = x
Ohhh okay, I understand it now. Thank you =)