I need help with this

Question

5�ã3+2�ã75

Answer 1

secret is 75 = 3 * 25 = 3 * 5^2

5 sqrt ( 3 ) + 2 sqrt ( 3 * 5^2 )

5 sqrt ( 3 ) + 10 sqrt ( 3 )

15 sqrt ( 3 )