Answer:
2 * (6-y) * (6+y)
Step-by-step explanation:
72 - 2 * y^2 = 2 * (36 - y^2) = 2 * (6-y) * (6+y)
so it's 2 * (6-y) * (6+y)
its 2(6-y).(6+y)
firstly you factor out 2from the expression
from 72-2y^2 to 2(36-y^2)
then you use a^2-b^2=(a-b) (a+b) and we factor the expression
2(6-y).(6+y)
