Question

Rationalise 2/3 - 5
by 2 root 2 plus 3 root 3
​

Answer 1

Step-by-step explanation:

2√3 - √5/ 2√2 + 3 √3

= 2√3-{√5/2√2*-2√2/-2√2} +3√3

=2√3-{ -2√10/-4*2} +3√3

= 2√3-{√10/4} +3√3

= 2√3 - √10/4 + 3√3

=8√3 - √10 + 12√3/4

= 20√3 -√10/4