Question

y(5y+2x)-(x+y)^2
при x=√11       y=√3

Answer 1

y(5y+2x)-(x+y)^2
5y^2+2xy-x^2-2xy+y^2
4y^2-x^2
4(√11)^2 -(√3)^2=4*11-3=41