Question 393737
Simplify each expression. Rationalize all denominators. Assume that all variables are positive. 
(8-3sqrt(2)(8+3sqrt(2)


(8 - 3sqrt(2)) (8 + 3sqrt(2))
use FOIL, First Outer Inner Last
8^2 + 8 * 3sqrt(2) - 8 * 3sqrt(2) - (3sqrt(2))^2
64 - 9 * 2
64 - 18
46