Question

(2+root5)^2
expand need answer fast​

Answer 1

Answer:

answer is that

Step-by-step explanation:

(2+√5)^2= (2)^2+√5^2+2×2×√5

identity= (a+b)^2= a^2 +b^2 +2ab

=4+5+4√5

=13√5 Ans