Step-by-step explanation:
I cannot read the initial expression without doubt, but I just guess it is 3×sqrt(8).
that would make it : sqrt(9×8) = sqrt(72).
A is correct : sqrt(9)×sqrt(8) = sqrt(9×8) = sqrt(72).
B is correct : sqrt(6)×sqrt(12) = sqrt(6×12) = sqrt(72).
C is NOT correct : sqrt(6)×sqrt(24) = sqrt(6×24) = sqrt(144) = 12
D is correct : sqrt(3)×sqrt(24) = sqrt(3×24) = sqrt(72)
E is NOT correct : 72 is NOT sqrt(72)
F is NOT correct : sqrt(3)×sqrt(12) = sqrt(3×12) = sqrt(36) = 6
