In this video, the steps and rules used to solve question 1 in grade 9 practice on simplifying expressions with radicals are presented.
Question: Simplify the expressions
a) \( \quad 2\sqrt{8} - 4 \sqrt{2} \) b) \( \displaystyle \quad \frac{2 + \sqrt {12}}{2} \) c)
\( \displaystyle \quad 2 \sqrt 3 + \frac{6}{\sqrt 3} \) d) \( \displaystyle \quad 3 \sqrt 5 - \frac{1}{\sqrt 5 - 2} \)