 1.&amp;#10; \\ Dua~akar~persamaan~kuadrat :x_1 = - \frac{5}{2},~~x_2 = - \frac{3}{2} &amp;#10;  \\ &amp;#10;\\ Hasil~dari~akar~adalah~x_1 . x_2 = - \frac{5}{2}~.~( \frac{3}{2})  =  \frac{15}{4} = 3 \frac{3}{4}  &amp;#10;