Question

( 5 + ✓5) (5-√5) on simplification

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

20

Step-by-step explanation:

(5+√5) (5-√5)

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

(5)^2 - (√5)^2 = 25 - 5 = 20