Question

can someone pls tell me how did this answer came? ​

Answer 1

Hiii

your answer came by

RATIONALIZE THE DENOMINATOR

Hope it will help you

Answer 2

Step-by-step explanation:

= √72/(5√72 +3√288 - 2√648)

= √(36*2) / (5√(36*2) + 3√(144*2) - 2√(324*2) )

= 6√2 / (5*6√2 + 3*12√2 - 2*18√2)

= (6√2) / (30√2 +36√2 - 36√2)

= 6√2 / (30√2)

= 6/30

= 1/5