1.
y=c_{1}e^{\frac{(1+\sqrt{5})t}{2}}+c_{2}e^{\frac{(1-\sqrt{5})t}{2}}
2.
x=c_{1}e^{8t}+c_{2}e^{-8t}
3.
y=c_{1}e^{\frac{t}{2}}+c_{2}e^{-t}
4.
y=c_{1}e^{2t}+c_{2}e^{-t}
5.
y=c_{1}e^{\frac{(5+\sqrt{19})t}{3}}+c_{2}e^{\frac{(5-\sqrt{19})t}{3}}
6.
y=c_{1}e^{2t}+c_{2}e^{-2t}
7.
y=c_{1}e^{\frac{t}{2}}+c_{2}e^{-2t}
8.
y=c_{1}e^{3t}+c_{2}e^{-10t}
9.
y=c_{1}e^{-x}+c_{2}e^{-2x}
10.
y=c_{1}e^{\frac{(-1+\sqrt{5})t}{2}}+c_{2}e^{\frac{(-1-\sqrt{5})t}{2}}