144*√12
=12^2*12^(1/2)
=12^(2+1/2)
=12^(5/2)
=[(2√3)^2]^(5/2)
=(2√3)^5
所以真数=[(2√3)^5]^(1/4]
=(2√3)^(5/4)
所以原式=5/4