1. 
                                y=c_{1}e^{4t}+c_{2}te^{4t}
                            
                                                    
                                2. 
                                y=40e^{\frac{t}{4}}+c_{2}e^{\frac{t}{4}}t
                            
                                                    
                                3. 
                                y=c_{1}t+c_{2}
                            
                                                    
                                4. 
                                y=c_{1}e^{\frac{x}{3}}+c_{2}e^{\frac{x}{3}}x
                            
                                                    
                                5. 
                                y=c_{1}e^{-t}+c_{2}te^{-t}
                            
                                                    
                                6. 
                                y=c_{1}e^{-7t}+c_{2}te^{-7t}
                            
                                                    
                                7. 
                                y=c_{1}e^{-\frac{3t}{10}}+c_{2}e^{-\frac{3t}{10}}t
                            
                                                    
                                8. 
                                y=(8e^{\frac{3}{10}}-c_{2})e^{-\frac{3t}{10}}+c_{2}e^{-\frac{3t}{10}}t
                            
                                                    
                                9. 
                                y=c_{1}e^{3t}+c_{2}te^{3t}
                            
                                                    
                                10. 
                                y=c_{1}e^{-\frac{3t}{2}}+c_{2}e^{-\frac{3t}{2}}t