Question

Can someone pls help me solve (5+√5) (5-√5)

Answer 1

by using
(a-b) (a+b)=a^2-b^2

25-5=20

Answer 2

Hey!!!!

Here is your answer.

In this sum, we have to use the formula
(a+b)(a-b) = (a^2 - b^2)

So, the answer will be, 25-5= 20.

Hope it will help you.

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