Question

Please help me with explanation​

Answer 1

Answer:

Step-by-step explanation:

Basically for questions like these, you have to make the denominator a whole number with no surds, so you multiply it by the same numbers but change the sign. Whatever you do at the bottom you have to do at the top so

$\frac{3(\sqrt{5}-\sqrt{2}) }{\sqrt{5} +\sqrt{2} (\sqrt{5}-\sqrt{2} )}$

and then you expand

Answer 2

Step-by-step explanation:

3/(√5+√2) = 3/(√5+√2) × (√5-√2)/(√5-√2)

= 3(√5-√2)/5-2 = 3(√5-√2)/3 = √5-√2 answer:-

hope this helps you.