Answer:
(x * x) * (x * x) * (x * x) * (x * x)
Explanation:
(y^4) is the same thing as y * y * y * y
so for y = (x^2), we can write (x^2)^4 as:
(x^2) * (x^2) * (x^2) * (x^2)
and each (x^2) is just x * x
so, this is how you can write it!
(x * x) * (x * x) * (x * x) * (x * x)