Take a factor out of the square root:
sqrt(3y^2) , where y<0

factor took out was , And resultant expression is   .

Step-by-step explanation:

Here we need to Take a factor out of the square root:  sqrt(3y^2) , where y<0 .Let's do this :

The given expression is  sqrt(3y^2) or ,

We know that , to take out a factor out of the square root that factor must have a degree in multiple of 2 , as    etc . So ,

⇒

⇒

⇒

⇒

⇒

Therefore , factor took out was , And resultant expression is   .

-y × sqrt(3)

Step-by-step explanation:

3y²

3 × (-y)²

sqrt(3 × (-y)²)

-y × sqrt(3)

y < 0

-y > 0