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anonymous
 4 years ago
what would this be (sq rt 0f 21) * (sq rt 0f 3)
anonymous
 4 years ago
what would this be (sq rt 0f 21) * (sq rt 0f 3)

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Do like the last problem and multiply the two numbers under the root together and then find any perfect squares.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0how there are no perfect roots there is 7 and 3 put neight of those are perfect squaer

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0There is 7*3=21 and 3 so your factors are 7,3,3.... because the problem is \[\sqrt{21*3}\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0both problems have the same root so you can multiply the numbers under the root together.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0im still not getting this

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0What do you get if you multiply 21*3? Then what are the factors of that? Then take out any factor pairs and what is left is what stays under the square root.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.01and63 3and 21 9and 7 so i would use this one

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Right, because 9 is a perfect square and 7 doesn't have any perfect square factors.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0then what do i do with the other half of the problem

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0umm what other half.... the problem was \[\sqrt{21}*\sqrt{3}\] correct?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ya but what do i do with the (sq rt of 3)
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