Question

the simplified from of (√a+√b) (√a-√b) is. (a) a+b. (b) a-b. (c) 2ab (d) 2a-2b​

Answer 1

(√a+√b)(√a-√b)

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

answer: (b)a-b

Answer 2

Answer:

Option(b) a-b

Step-by-step explanation:

(√a+√b) (√a-√b)

= (√a)²- (√b)²

= a-b