Question

help question attached math

Answer 1

@Elsa213

Answer 2

Which one

Answer 3

wdym which one?

Answer 4

Do you think it is?

Answer 5

honestly I'd say c

Answer 6

Why's that?

Answer 7

because 13 + 3 = 16 5 + 5 = 10. Im aware thats prob not how it works but thats why I asked lol

Answer 8

\[a \sqrt c + b \sqrt c = (a + b) \sqrt c\]

Answer 9

That is the rule.

Answer 10

so b?

Answer 11

yup i got it

Answer 12

What you are proposing is:
\[a \sqrt c + b \sqrt c = (a + b) \sqrt (c + c)\]
See the difference?

It isn't B..

Answer 13

13 is a, 3 is b, 5 is c

Answer 14

ok that makes it easier lol.. wait give me a sec

Answer 15

ok so then according to this a√c+b√c=(a+b)√c it is 13√8√5= 13 + 3 16√8?

Answer 16

or 16√5 then?

Answer 17

13√8√5= 13 + 3 16√8?

You lost me

Answer 18

well if its c + b then 5 + 3 = 8 so I thought it would be 8 instead of 5

Answer 19

there is no c+b

Answer 20

\[(a \sqrt c) + (b \sqrt c) = (a + b) \sqrt c\]

Answer 21

Is that more clear?

Answer 22

ah ok yeah thx

Answer 23

so 16√5 then? D?

Answer 24

Correct

Answer 25

You can always check your work with this website: https://www.wolframalpha.com/input/?i=(13+sqrt+5)+%2B+(3+sqrt+5)

Answer 26

@Ultrilliam why doesn't this link work?

Answer 27

Ok awesome thanks Shadow

Answer 28

I guess just google Wolfram Alpha

Answer 29

yeah ok thanks

Answer 30

Yeah just try and do the problem first, and check your work w/that. Great resource.

Answer 31

Perfect thx