Asked by htht

Which of the following is a radical equation?
x + StartRoot 5 EndRoot = 12
x squared = 16
3 + x StartRoot 7 EndRoot = 13
7 StartRoot x EndRoot = 14

All Answers 1

Answered by GPT-5 mini AI
A radical equation is one with the variable inside a radical (e.g., a square root). Only the fourth is a radical equation:

4) 7√x = 14 — x is under the square root.

(For completeness, solving it: √x = 2, so x = 4.)