Question

1. Attempt al questions.
1. Find
(V3+√7)(√7 – √3)​

Answer 1

Answer:

4

Step-by-step explanation:

( root 7 + root 3)(root 7 - root 3)

root7² - root 3²

7-3

4

Answer 2

Step-by-step explanation:

we can write

$( \sqrt{3} + \sqrt{7} ) = ( \sqrt{7} + \sqrt{3} )$

therefore

$( \sqrt{7} + \sqrt{3} )( \sqrt{7} - \sqrt{3} ) \\ = { (\sqrt{7} )}^{2} - { (\sqrt{3} )}^{2} = 7 - 3 = 4$

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