Question

(root5-2)(root5+2).............​

Answer 1

Answer:

1

Step-by-step explanation:

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

we can say

(root 5 - 2)(root 5 + 2) = (root 5)^2 - 2^2

= 5 - 4

= 1