Question

write down the value of: (2+root5)^2​

Answer 1

Answer:

here is your answer in the attachment

hope it helps mark as brainliest

Answer 2

Answer:

9+4√5=17.944

Step-by-step explanation:

=(2+√5)^2

using formula (a+b)^2=a^2+b^2+2ab

=(2)^2+(√5)^2+2(2)(√5)

=4+5+4√5

=9+4√5

=9+4(2.23)

=9+8.944

=17.944