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4 years ago

8

Simplify the radical 84

2 answers:

aalyn [17]4 years ago

8 0

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 $\sqrt{21}$

shutvik [7]4 years ago

4 0

Answer:

The answer is 2√21

Step-by-step explanation:

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