Разложи на множители 5xy−40x−3y+24
5xy-40x-3y+24= 5x(y-8)-3(y-8)= (5x-3)(y-8)
5xy−40x−3y+24=(24-40x)+(-3y+5xy)=-8(3+5x)-y(3+5x)=(-y-8)(3+5x)