Question

(5+ √5) (5 - √5) pls aswer this​

Answer 1

Answer:

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

now

( 5^2 - (√5 )^2 ) = 25 - 5 = 20

Answer 2

Answer:

20

Step-by-step explanation:

Since the given question is of the form (a+b)(a-b) therefore it can be written as (a^2-b^2) . Over here a=5 and b=√5 . So the answer will be [5^2-(√5)^2]=25-5=20.

hope it will help you .

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