[tex]The\ distributive\ property:a(b\pm c)=ab\pm ac\\\\37=30+7\\\\5\cdot37=5\cdot(30+7)=\huge\boxed{5\cdot30+5\cdot7}\leftarrow \boxed{b}\\---------------------------\\37=40-3\\\\5\cdot37=5\cdot(40-3)=\huge\boxed{5\cdot40-5\cdot3}\leftarrow\boxed{d}[/tex]
