Question

Radicals??
I have no idea how to do this.

Rationalize the denominator and simplify.

12/ 7(sqrt) +2

Answer 1

I assume this is 12/(sqrt7 +2) ?

Answer 2

Well?

Answer 3

12/ (sqrt7) +2


sorry!

Answer 4

if you use the equation editor (try it!) , the button in the lower left, you can make it look clearer. do you mean:
\[ \frac{12}{\sqrt{7}+2}\]
?

Answer 5

if so, you can multiply by the *conjugate* which is a fancy word for multiply top and bottom by \( \sqrt{7}-2\)