Question

(a+√b) ( a-√b) is equal to​

Answer 1

Answer:

(a^2-b^2)

Step-by-step explanation:

a(a-b)+b(a-b)

a^2-ab+ab-b^2

(a^2-b^2)

Answer 2

Answer:  a² - b

using the (a+b) (a-b) = a² - b²  identity,

(a+√b) (a-√b) = a² - (√b)²

                      = a² - b

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