Question

Rationalize the denominator and simplify.

Answer 1

\[\frac{ \sqrt{a+1}-2 }{ \sqrt{a+1}+2 }\]

Answer 2

Multiply the top n bottom by

\[( \sqrt{a+1} - 2 )\]

What will u get?

Answer 3

Why would I do that?

Answer 4

It will simplify the bottom part to be a+1-2^2 = a-3
You just need to expand the top then

Answer 5

That's not right... It can't be set up like that for my school.

Answer 6

Oh OK then may be some one else can help u then. Good luck!

Answer 7

a = 3

Answer 8

(a-4 sqrt(a+1)+5)/(a-3)

Answer 9

sqrt(a+1)/(sqrt(a+1)+2)-2/(sqrt(a+1)+2)

Answer 10

a=3

Answer 11

???

Answer 12

@DaWizjr