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Pani-rosa [81]
3 years ago
8

Simplify 3 square root of 20/ square root of 5

Mathematics
1 answer:
7nadin3 [17]3 years ago
8 0

-7√5

rewrite 20 as 2^2·5

factor 4 out of 20. negative ∛4(5)-√5

rewrite 4 and 2^2 negative ∛2^2·5-√5

pull terms out from under the radical

-3(2√5)√5

multiply 2 by -3

-6√5-√5

subtract √5 from -6√5

-7√5

the answer is -7√5


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