Question

How do you solve `root4(y-9) +4 = 0`?

Answer 1

`y=265`

Explanation:

Subtract `4` from both sides.

`root4(y-9)=-4`

To undo the fourth root, raise both sides to the power of `4`.

`(root4(y-9))^4=(-4)^4`

`y-9=256`

Add `9` to both sides.

`y=265`