SOLUTION: I am looking for someone to please show how the square root of (7.96) equals (2.82). I am a homeschooling mom and I have tried using the square root formula from our Pre-Algebra T

Algebra ->  Square-cubic-other-roots -> SOLUTION: I am looking for someone to please show how the square root of (7.96) equals (2.82). I am a homeschooling mom and I have tried using the square root formula from our Pre-Algebra T      Log On


   

Question 161296This question is from textbook Algebra I
: I am looking for someone to please show how the square root of (7.96) equals (2.82). I am a homeschooling mom and I have tried using the square root formula from our Pre-Algebra Textbook and still cannot find the answer to show as 2.82. Can someone please show us how to compute this so we may carry this into our lesson?
Thank you This question is from textbook Algebra I

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt%287.96%29+
Find the largest square less than 7. 2^2=4
Subtract the 4 from the 7=3. bring down the next 2 digits [396].
You need to multiply the 2*2 & add a zero for the next divisor (40)
Now you need to find the next value to add to the (4x)*x <396
[(40+?)*?<396].Try 9. [49*9=441} to large. Try 8. [48*8=384] this fits.
Now subtract 384 from 396=16.
Bring down two zeros
Double the 28=56. [56+?)*?<1600.try 563*3=1689 too big. Try 562*2=1124
Suntract 1124 from 1600.
VOILA 2.82 WITH REMAINDER
-------------------------------------------------
****2.82
***______________
2\/ 7.9600
****4
****---
48**396
****384
****-----
*****1600
562**1124
*****----
******476