30 = 5 * 2 * 3
all prime numbers
so sqrt (30) is sqrt (30) period
however
sqrt on the bottom is no fun, should rationalize
multiply top and bottom by sqrt 30
(5/sqrt30)(sqrt30/sqrt30)
= (5 sqrt 30) /30
= sqrt (30) /6
5/sqrt of 30
how do I solv this?
3 answers
OHHH!!! okay, I get it(ish)
thank you!
1 answer