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Jason Zhao · Answer 1 · 2021-08-11T12:17:16+0000

Answer:

2√(21)

Explanation:

We can multiply the two irrational terms, getting
√(84) .

We see that 4 is a factor of 84, so we can rewrite
√(84) as
√(4 (21) ) . We can take the 4 out, getting
2√(21) .