Question

write the equivalent of....
pls help me as soon as possible​

Answer 1

Answer:

$a^{2} -b$

Step-by-step explanation:

$(a-\sqrt{b} )(a+\sqrt{b})$

⇒ $(a)^{2} - (\sqrt{b} )^{2}$     $[as (a-b)(a+b) = a^{2} - b^{2}]$

= $a^{2} -b$

Hope it helps

Answer 2

Given: (a+√b)(a-√b)

Solution:

Using (a+b) (a-b) = a²-b²

therefore, (a+√b)(a-√b)

= a²-√b²

= a²-b

Answer: a²-b