SOLUTION: sqrt(8)

Algebra ->  Square-cubic-other-roots -> SOLUTION: sqrt(8)      Log On


   

Question 121996: sqrt(8)
Answer by tutor_paul(519) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt%288%29
First, write out the number under the radical sign in terms of it's factors:
sqrt%288%29=sqrt%282%2A4%29
You can rewrite the sqrt(2*4) as follows:
sqrt%288%29=sqrt%282%29%2Asqrt%284%29
You know that:
sqrt%284%29=2, so you can simplify the equation to be:
sqrt%288%29=2sqrt%282%29
====================
Good Luck,
tutor_paul@yahoo.com