1. Isolate radical on one side of the equation.
2. Square both sides of the equation
( usually the first sentence is different but I think that’s the answer, hope that helped :) )
Answer:
3rd option
Step-by-step explanation:
We have two kind of necks and three different colours so the andswer would be 3rd option
Crew-neck :CB,CY,CG
V-neck : VB,VY,VG