Question 1049432

{{{x^2+5xy+6y^2+x+3y}}}....replace {{{5xy}}} with {{{3xy+2xy}}}

{{{x^2+3xy+2xy+6y^2+x+3y}}}....group

{{{(x^2+3xy)+(2xy+6y^2)+(x+3y)}}}

{{{x(x+3y)+2y(x+3y)+(x+3y)}}}

{{{(x+3y)(x+2y+1)}}}