Question

5y(x+y)+x(x+y)=?

Answer 1

5у(х+у)+х(х+у)=(х+у)(5у+х)

Answer 2

5y(x+y)+x(x+y)=5ух+5у²+х²+ух=6ух+5у²+х²=4(у²+ух)+(у+х)²