Question

simply 5 -3√2 / 5+3√2 by rationalising the denominator​

Answer 1

$5 + 3 \sqrt{2} \: upon \: 3$

this is your answer

ok

Answer 2

= 5-3√2 / 5+3√2

= (5-3+5+3) (√2)

= 10 × √2

= 10√2