Question

Multiply : (2+√5) (2-√5)​

Answer 1

Answer:

there u go pls make me the brainalist

Step-by-step explanation:

Answer 2

Answer:

-1

Step-by-step explanation:

=2^2-(root5)^2           [(a+b)(a-b)=a^2-b^2]

=4-5= -1