Question

 (a+√b) (a - √b) is ............ 




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Answer 1

Answer:

a+√b) (a - √b)

using formula a²-b²=(a+b)(a-b)

so, a²-(√b)²

a²-b²

Answer 2

Answer:

$(a+√b) (a - √b) = {(a)}^{2} - { \sqrt({b} ) }^{2} \\ = {a}^{2} - b$

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