Question

What expression is the simplified form of square root of y^4
A. y
B.y^2
C.y square root y
D. y^2 square root y

Answer 1

think of y^4 as yyyy
now, how many pairs of y are there?

Answer 2

\[\sqrt{y^{4}} = \sqrt{yyyy}\]

Answer 3

you can pull out every pair you find, there are 2 pairs of y in there, so:
\[yy \sqrt{1} = y^2\]