answers using square roots as well, not with decimals or anything. please~
2007-09-27 17:30:36 · 3 answers · asked by BC126 1 in Education & Reference ➔ Homework Help
PLEASE HELP!!!!!!!~
2007-09-27 17:36:34 · update #1
It's not in the book because this is a review lesson as part of the quadratic formula...how do you find the square root of a number that doesn't have a perfect square? PLEASE HELP
2007-09-27 17:40:31 · update #2
there are apparantly so many ways my eyes go goggle just looking at it.. heres the link
http://en.wikipedia.org/wiki/Methods_of_computing_square_roots
2007-09-27 17:38:56 · answer #1 · answered by Charliemoo 5 · 0⤊ 0⤋
example : sqrt 20
first you want to numbers that when you multiply give you twenty like four and five. you already know four is a perfect square root so you take it out as two and leave five inside the sqrt because that is not a perfect square. so your anwser would be. two sqrt of five.
Therefore if you have a sqrt of a number thats not perfect find a number that is a perfect root that can be multiplied by another and take that square root, bring it outside the root and keep the others in.
2007-09-28 00:43:06 · answer #2 · answered by sugarkins 2 · 0⤊ 0⤋
there is a step by step procedure that almost equates to trial and error division. Too complicated to describe here. Look it up in your textbook.
2007-09-28 00:36:09 · answer #3 · answered by Mike 7 · 0⤊ 0⤋