1. 
                                \sqrt{\frac{x+5}{2}},-\sqrt{\frac{x+5}{2}}
                            
                                                    
                                2. 
                                \sqrt{\frac{x-4}{3}},-\sqrt{\frac{x-4}{3}}
                            
                                                    
                                3. 
                                \frac{\sqrt{5}\sqrt{x}}{10},-\frac{\sqrt{5}\sqrt{x}}{10}
                            
                                                    
                                4. 
                                \sqrt{x+5},-\sqrt{x+5}
                            
                                                    
                                5. 
                                \sqrt{\frac{x+2}{2}},-\sqrt{\frac{x+2}{2}}
                            
                                                    
                                6. 
                                \sqrt{\frac{x}{3}},-\sqrt{\frac{x}{3}}
                            
                                                    
                                7. 
                                \frac{1+\sqrt{12x+25}}{6},\frac{1-\sqrt{12x+25}}{6}
                            
                                                    
                                8. 
                                \sqrt{x-1},-\sqrt{x-1}
                            
                                                    
                                9. 
                                \sqrt{x+4},-\sqrt{x+4}
                            
                                                    
                                10. 
                                \frac{\sqrt{x}}{2},-\frac{\sqrt{x}}{2}