Question

(√a+√b)(√a-√b) is
(a) a+b
(b) a-b
(c) 2√a
(d) 2√b​

Answer 1

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

b) a-b

Answer 2

Answer:

a-b

Step-by-step explanation:

a²-b²=(a+b)(a-b)

a=√a² and b=√b²

√a²-√b²=(√a+√b)(√a-√b)

= a-b =(√a+√b)(√a-√b)