Question

(5+√5) (5-√5) on simplification gives 20​

Answer 1

Answer:

Yes it gives 20 only .

$(5 + \sqrt{5)}$

$(5 - \sqrt{5)}$

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

$25 - 5$

$= 20$

Thank you

Hope it is helpful .