If , 18*sqrt(8) - 8 * sqrt(18) = sqrt(n), what is n?
Some one please help!
18sqrt 8 - 8sqrt 18 = sqrt n
sqrt (8) = 2sqrt 2 and sqrt (18) = 3sqrt (2)
So
18 * 2 sqrt 2 - 8 * 3 sqrt 2 = sqrt (n)
36 sqrt 2 - 24 sqrt 2 = sqrt (n)
12 sqrt (2) = sqrt (n)
sqrt ( 2 * 12^2) = sqrt (n)
sqrt ( 288) = sqrt (n)
n = 288
THANK YOU SO MUCH!
