Question

PLEASE HELP PLEASEEEEE!!!!! =*(

sqrt 756 How do i do big numbers? Is there a way i can break this down easily?

Answer 1

\[\sqrt{756}\] right?

Answer 2

\[\sqrt{756}=\sqrt{36\times 21}\]
basically, find two numbers that when you multiply give you 756, but ensure one number has a root
root of 36 is 6 so
\[6\sqrt{21}\]

Answer 3

wait what?

Answer 4

i need a fast method i cant just sit there at a test workin on this

Answer 5

i have no other method

Answer 6

oh use the squares hmmm

Answer 7

Do you have a calculator with you?

Answer 8

It's about 27. 5

Answer 9

27.4954541697 to be exact

Answer 10

fastest way is keep dividing by 4 or 9 or whatever perfect square goes into it until you cant divide it any more

756/4 = 189
189/9 = 21

--> sqrt4 * sqrt9 * sqrt21 = 6sqrt21