Question

Complete the law (a+root b) (a-root b)=?

Answer 1

Answer:

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

= a^2 - (rootb)^2

= a^2 - b

Answer 2

Answer:

a^2-b

Step-by-step explanation:

we know that (a+b)(a-b) =a^2-b^2

so using the same identity

(a+√b)(a-√b) =a^2-(√b) ^2= a^2-b