Question

√28

simplify by factoring

Answer 1

ok any idea how to start?

Answer 2

2/7 i think

Answer 3

sqrt 28 = sqrt (4*7) = 2* sqrt (7) = 2*2.646 = 5.29

Answer 4

First we have to factor the radicand into square factors (Hint: *The best squares* try 100, 25, 16, 9 and 4. If none of these work, then try other square factors.)

4 is a factor of 28 so we can rewrite √28 as √4x7

Since 4 is a square factor, we take the square root of 4 which is 2. We put the 2 in front of the radical symbol: 2√7 Now, the radicand is 7 which does does not have square factor. Therefore the simplified radical is 2√7 . this is read "2 times the square root of 7"

is how i got it.

Answer 5

@Bev you sure?.......

Answer 6

Yep! 4 and 7 are factors of 28, so 28 can be written as 4 times 7. That will simplify to 2 sqrt 7. By the way, how are you typing the square root sign. I don't see a square root sign on the keyboard. I am just abeginner, though. Thanks

Answer 7

...

Answer 8

Xd

Answer 9

@Bev stop putting ur answer in decimals, those r approximations..

Answer 10

no radicals are needed?

Answer 11

im lost

Answer 12

it is

2
square root 7

Answer 13

As i said........

Answer 14

\[\sqrt{28}\]\[\sqrt{4}\sqrt{7}\]\[2\sqrt{7}\]
that's ur answer, anyone who says other wise r idiots..

Answer 15

@iforgot
@HawkCrimson
@Bev
@higherlearning

Case close :D

Answer 16

* my answer ended this question :d *

Answer 17

^ @nathan917 thx

Answer 18

lol yu guys are too much

Answer 19

:D he gets the medal.......

Answer 20

lol this isnt a game to see who gets a medel. it's about teaching people :)

Answer 21

Some what unfair but ah ill forget it i got 13 medals in less than 5 min..

Answer 22

ik

Answer 23

i just though my example was better.

**i dont mean this in a bad way* :D

Answer 24

@HawkCrimson
" lol this isnt a game to see who gets a medel. it's about teaching people :)"

Answer 25

i agree very much

Answer 26

Same.

Answer 27

K guys case closed dont spam on this question :d