Question

Rationalize the denominator

6 - 4√3
-----------
6 + 4√3​

Answer 1

6-4√3×6-4√3

--------------------

6+4√3×6+4√3

=36+48-48√3

---------------------

36+48+48√3

=84-48√3

---------------------

84+48√3

=12(7-4√3)

---------------------

12(7+4√3)

=(7-4√3)

--------------

(7+4√3)