Question

find the product of (√3+√5) (√3-√5)​

Answer 1

Answer:

here is format of a²-b²(a+b)(a-b)

(√3)² -(√5)²

[√3 ✖ √3=√9=3 for your understanding]

3 - 5

= -2

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Answer 2

$( \sqrt{3} + \sqrt{5} )( \sqrt{3} - \sqrt{5} ) \\ (x + y)(x - y) = {x}^{2} - {y}^{2} \\ then \: ... \\ = { \sqrt{3} }^{2} - { \sqrt{5} }^{2} \\ = 3 - 5 = - 2$

ғᴏʀᴍᴜʟᴀ ➽ (ᴀ+ʙ)(ᴀ-ʙ)=ᴀ^2-ʙ^2

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