Answer:
-15 sqrt(6)
Step-by-step explanation:
-3 sqrt(24) - sqrt(54) - 3 sqrt(24)
We know that sqrt(ab) = sqrt(a) sqrt(b)
-3 sqrt(4*6) - sqrt(9*6) - 3sqrt(4*6)
-3 sqrt(4) sqrt(6) - sqrt(9)sqrt(6) - 3sqrt(4) sqrt(6)
-3 *2 sqrt(6) - 3 sqrt(3) - 3*2 sqrt(6)
-6 sqrt(6) - 3 sqrt(6) - 6 sqrt(6)
-15 sqrt(6)
