Question

Prove that (5+√5)(5-√5) -20
(5-√5) -20.
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Answer 1

Answer:

bro what to prove in this. plz make something equal to this ques so that i can prove

Answer 2

Step-by-step explanation:

It is inthe form of (a+b)(a-b) = (a^2 - b^2)

(5+root5)(5-root5)

= 5^2 - (root5)^2

= 25 - 5

= 20

HOPE THIS HELPS YOU......