Answer:
Step-by-step explanation:
[tex]c=(\dfrac{co \ efficient \ of \ x}{2})^{2}[/tex]
[tex]1) c =( \dfrac{8}{2})^{2}=4^{2} =16\\\\\\2) c= (\dfrac{5}{2})^{2}=\dfrac{25}{4}\\\\\\3)c= (0.1)^{2}=0.01\\\\4)c=\dfrac{b^{2}}{4}[/tex]
