Помогите пожалуйста: Найдите значение выражения (√5-√2)^2

In autumn I like to collect bouquets of autumn leaves.In summer I like to swim and sunbath.In winter I like to do a snowman.In spring I like to walking on the street.

(√5)^2 - 2*√5*√2 + (√2)^2 = 5 - 2√10 + 2 = 7 - 2√10

(√5- √2)^2= √5^2- √2^2=> 5-2=3 т.к √а^2=а