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anonymous
 4 years ago
@mathstudent55
anonymous
 4 years ago
@mathstudent55

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mathstudent55
 4 years ago
Best ResponseYou've already chosen the best response.1Remember what we did before. Factor the 18 in the radical in the numerator.

mathstudent55
 4 years ago
Best ResponseYou've already chosen the best response.1Then look at the denominator, what is sqrt(36)?

mathstudent55
 4 years ago
Best ResponseYou've already chosen the best response.118 is in a radical. What are the the prime factors of 18? Yes, sqrt(36) = 6

mathstudent55
 4 years ago
Best ResponseYou've already chosen the best response.1You have two factors that are the same. That means you can pull them out of the radical.

mathstudent55
 4 years ago
Best ResponseYou've already chosen the best response.1dw:1356660281296:dw

mathstudent55
 4 years ago
Best ResponseYou've already chosen the best response.1As you know, sqrt(36) = 6. That's in the denomniator. Also as you wrote, 18 = 3 x 3 x 2. That's in the radical in the numerator.

mathstudent55
 4 years ago
Best ResponseYou've already chosen the best response.1dw:1356660403586:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0wait wouldnt 3 be outside the radical?

mathstudent55
 4 years ago
Best ResponseYou've already chosen the best response.1Right. I didn't take it out yet, but that's correct. sqrt(9) = 3

mathstudent55
 4 years ago
Best ResponseYou've already chosen the best response.1dw:1356660480815:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0thats not complete right?

mathstudent55
 4 years ago
Best ResponseYou've already chosen the best response.1Now the last step is to divide the 3 in the numerator and the 18 in the denominator by the largest number that divides into both.

mathstudent55
 4 years ago
Best ResponseYou've already chosen the best response.1dw:1356660621873:dw

mathstudent55
 4 years ago
Best ResponseYou've already chosen the best response.1Not 2/6, but sqrt(2)/6
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