square root question??

Question

a square has side (√2 + √3) units. Use (a+b)^2 = a^2 + 2ab + b^2 to show that the area of the square is 5+2√6 units^2

thank you

Answer 1

sqrt : square root
side = (sqrt(2) + sqrt(3))
area of a square = side^2 = (sqrt(2) + sqrt(3))^2

here, a = sqrt(2) , and b = sqrt(3)

just input into the equation to get the answer

Answer 2

(√2+√3)^2 = (√2)^2 + 2*√2*√3 + (√3)^2 = 5+2√6 sq. units.