Question

xby2+yby3whole square​

Answer 1

(x/2 + y/3)^2

= (x/2)^2 + 2×(x/2)×(y/3) + (y/3)^2

= (x^2)/4 + xy/3 + (y^2)/9

= (9x^2 + 12xy + 4y^2)/36