Question

Simplify : ( 5 + √2) ( 5 - √2 )

Answer 1

Step-by-step explanation:

By rationalisation,

( \sqrt{5} - 2)*( \sqrt{5} - 2) / ( \sqrt{5} + 2)*( \sqrt{5} - 2)



Now,

( \sqrt{5} - 2)^{2} / ( \sqrt{5}^{2} - 2^{2}

= (5+4-4root5) / (5-4)

= 9- 4\sqrt{5}

i hope this will help you

Answer 2

SOLUTION:-

Here is your answer...