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}}