Question

__/-- 20
(simplify the Expression) ( Radical)

Answer 1

your question does not seem to make sense - have you missed out some of the information?

Answer 2

__/-- <<-- Radical Sign, __/--20 simplify it? thats what my book says

Answer 3

oh I see, so you want to simplify:\[\sqrt{20}\]

Answer 4

how'd you do that?

Answer 5

you can type latex commands in the reply.
I have added some tips on how to use latex in the latex practising group - you can join that and have a look in the closed questions section for tips

Answer 6

Sure thanks! so the answer to my question is?

Answer 7

ok - first think of how you can write 20 as the the product of two numbers - one of which is a perfect square

Answer 8

10 x 2?

Answer 9

neither 10 nor 2 is a perfect square - try again

Answer 10

numbers that are perfect squares can be written as \(x^2\) - e.g. 9 is a perfect square because it can be written as \(3^2\)

Answer 11

20 x1? 5x 4?

Answer 12

5 x 4 is the correct answer because 4 is a perfect square - i.e. \(4=2^2\)

Answer 13

so the answer is \[5\sqrt{4}\]

Answer 14

so now, we rewrite the expression as:\[\sqrt{20}=\sqrt{4*5}=\sqrt{4}*\sqrt{5}=2*\sqrt{5}=2\sqrt{5}\]

Answer 15

does that make sense?

Answer 16

are you Simplifying the
\[5\sqrt{4}\]

Answer 17

no - your answer is incorrect. I was simplifying \(\sqrt{20}\)

Answer 18

ohh okay

Answer 19

ty

Answer 20

yw

Answer 21

how do i do Radical signs on the -Ask a question part-

Answer 22

join the Latex Practising Group - its all described there

Answer 23

http://openstudy.com/study?login#/groups/LaTeX%20Practicing!%20%3A)

Answer 24

look under the Closed Questions

Answer 25

i tried to find that group but nothing shows up

Answer 26

^^You the link I just pasted

Answer 27

*Use

Answer 28

were can i find it at? im on the latex page

Answer 29

look for how to enter inline latex

Answer 30

under the Closed Questions