Suggested Answer
[tex]56x^2+104x+48=0\\
7x^2+13x+6=0\\
7x^2+7x+6x+6=0\\
7x(x+1)+6(x+1)=0\\
(7x+6)(x+1)=0\\
x=-\frac{6}{7} \vee x=-1[/tex]
[tex]56x^2+104x+48=0\\
7x^2+13x+6=0\\
7x^2+7x+6x+6=0\\
7x(x+1)+6(x+1)=0\\
(7x+6)(x+1)=0\\
x=-\frac{6}{7} \vee x=-1[/tex]