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02-11-2020
Mathematics

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Simplify square root

Simplify square root class=

Respuesta :

mbzdtmamg mbzdtmamg

02-11-2020

Answer:

C

Step-by-step explanation:

look up rules of multiplying radicals.

You can multiply the radicands (the number inside the square root) then take the square root of the new number.

3*21 = 63

Factor 63 into 3*3*7

Pull out 3^2 from inside the square root

leaves you with 3sqrt7 or answer C

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