Question

(√5-√2)(√5+√2)
Solve the above expression

Answer 1

Answer:

(5-2)=3

Step-by-step explanation:

There is an identity which says

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

so here it will be

(root5)^2 - (root2)^2

we know that (root5)^2=5 and (root2)^2=2

so according to the identity it will be 5-2=3.

I hope it helps you!!

Answer 2

Answer:

formula is (√a-√b) (√a+√b) = a-b

Step-by-step explanation:

(√5-√2)(√5+√2) = 5-2=3

therefore,3 is answer