Question

(root a+root b)(root a-root b) is​

Answer 1

Answer:

a-b

Step-by-step explanation:

(√a + √b)(√a-√b)

(√a)(√a)-(√a)(√b)+(√a)(√b)-(√b)(√b)

a-√ab+√ab-b

a-b

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Answer 2

Answer:

a-b

Step-by-step explanation:

Following a^2-b^2=(a+b)(a-b)

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

=$\sqrt{a}^{2}$-$\sqrt{b}^{2}$

=a-b