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Elodie
Mathematics
25 October, 02:45
Simplify this radical.
V84
2/21
242
4/21
4/42
+3
Answers (
2
)
Zaid Young
25 October, 02:55
0
2√21
Step-by-step explanation:
√84
84 can be written as 4 * 21.
√ (4 * 21)
Distribute the square root to both terms.
√4 * √21
4 is a perfect square.
2 * √21
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Konnor Avery
25 October, 03:10
0
2√21
Step-by-step explanation:
√81 is √4 times √21
Since √4 is a perfect square, √4 = 2
We are left with 2 times √21
2√21
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