[tex] \frac{2 5}{4} [/tex]
                                             
                                          
                                          
                                        
											 
											[tex]\bf \pm \sqrt{\cfrac{25}{4}}\implies \pm \cfrac{\sqrt{25}}{\sqrt{4}}\implies \pm \cfrac{\sqrt{5^2}}{\sqrt{2^2}}\implies \pm \cfrac{5}{2}[/tex]