Question

simplify expression 2/(2+[radical]3)

Answer 1

\[\frac{ 2 }{ 2+\sqrt{3} }\]

Answer 2

multiply and divide by 2-\(\sqrt 3\)

Answer 3

what u get ?

Answer 4

I got 2[radical]3 + 4 ): but it's not an option..

Answer 5

because thats not correct.

Answer 6

\(\huge \frac{2(2-\sqrt3)}{(2+\sqrt3)(2-\sqrt3)}=?\)

what does denominator simplify to ?

Answer 7

use \((a-b)(a+b)=a^2-b^2\)

Answer 8

so the denominator is one.

Answer 9

yes.

Answer 10

what about numerator ?

Answer 11

why is it \[4-2\sqrt{3}\]?

Answer 12

yes, absolutely correct.
isn't that an option ?

Answer 13

yes, thank you!

Answer 14

welcome ^_^