Question

simplify root 48 - root 72- root 27+2 root 18

Answer 1

Root 48 = root(4*4*3)=4 root3
Root 72= root (3*3*2*2*2)=6 root2
Root 27= root(3*3*3)=3 root3
2 root 18= 2 root(3*3*2)=6 root2
Now given

Root 48- root72 -root 27 + 2 root 18
=4 root3 - 6 root 2- 3 root3 +6 root 2
After simplification
=root3

Answer 2

_________ ____________
_| 2×2×2×2×3 - _/ 2×2×2×3×3 -
_/3×3×3 + 2_/ 3×3×2
=4_/3 - 6_/2 - 3 _/3 + 6_/2
=_/3