Question

Rationalize the denominator of the following 30/ 5√3-3√5 please help me

Answer 1

30/(5√3-3√5) × (5√3+3√5)/(5√3-3√5)

30(5√3+3√5 )/ (5√3-3√5)(5√3+3√5)

30(5√3+3√5)/(5√3)^2-(3√5 )^2

30(5√3+3√5)/25×3-9×5

30( 5√3+3√5 )/75-45

30(5√3+3√5 )/30 (30 and 30 get divided and cancelled)

=5√3+3√5

Answer 2

hope this helps

5√3+3√5 is the answer