Question

the value of (5+√5)(5-√5)​

Answer 1

Answer:

Hey mate here is your answer ⬇️

We know that

(a+b) (a-b) = a square - b square

So, 25 - 5 = 20

Answer 2

Answer:

Hey mate,

Here is ur answer.....

5²-root5²

= 25-5

= 20....

Identity: a²-b² = (a+b) (a-b)

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