Question

What does it mean for an equation to be radical equation

Answer 1

A radical equation is just like any other equation, but having some algebraic expression of x's given inside a square-root symbol. It could be as simple as y =
`√(x)` or it could be any complex algebraic expression inside the radical sign.

The main condition for existence of any radical equation is that we can not have negative values inside square-root i.e. the algebraic expression given inside radical sign must have non-negative values (zero or positive real values).

Answer 2

A radical equation just means that there is a square root symbol over the equation or part of the equation.