Simplify (5+square Root 5)(5-square Root 5),Can You Help Me?

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4 Answers

Ramesh Kommana Profile
Ramesh Kommana answered
Lets 5 = a
square root 5 = b

then (a+b)(a-B) =
a2 - b2  =
(5)2 – (square root of 5)2 =
25-5 = 20
Mainul Hussain Profile
Mainul Hussain answered
=5

2-(√5)2=25-5=20
Anonymous Profile
Anonymous answered
(5 + square root 5)(5 - square root 5)
(5)^2 - (square root 5)^2
25 - 5
= 20

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Anonymous