Question

Simplify the radical 84

Answer 1

Answer:

2$\sqrt{21}$

Step-by-step explanation:

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

$\sqrt{84}$ = $\sqrt{4(21)}$ = $\sqrt{4}$ × $\sqrt{21}$ = 2$\sqrt{21}$

Answer 2

Answer:

The answer is 2√21

Step-by-step explanation: