Question

Simplify (√11-√7)(√11+√7)​

Answer 1

Answer:

Answer:- 4

Step-by-step explanation:

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Answer 2

Answer:

$here \: identity \: ( {x}^{2} - {y}^{2} ) = (x - y)(x + y) can \: be \: used \: \\ then \\ (\sqrt{11} - \sqrt{7} )( \sqrt{11} + \sqrt{7} ) = (11 - 7) \\ = 4 \\ \\ hence \\ ( \sqrt{11} - \sqrt{7} )( \sqrt{11} + \sqrt{7} ) = 4$