Question

(x-x2+2xy)-(y2+x+3xy)+y2 НА ПОМОЩ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!ПОЖАЛУЙСТА!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

x-x^2+2xy-y^2-x-3xy+y^2 = -x^2-xy

Answer 2

$(x-x^2+2xy)-(y^2+x+3xy)+y^2=\\=x-x^2+2xy-y^2-x-3xy+y^2=-x^2-xy=-x(x+y)$