Question

Simplify the following radical expression.

Answer 1

It would be: A 2 radical 5

Answer 2

_/20

This Is A Surd, In Order To Solve A Surd Question You Need To Look For The Numbers One Which Is "Rational" And The Other Which Is "Irrational"

Rational Number: This Are Number That The Root Give A Whole Number e.g _/4, _/16 etc

Irrational Number Is Opposite Of Rational


_/20
= _/4*5
= _/4 * _/5
= 2*_/5
=2_/5

OA Is Correct