I need to finish this question ASAP
Someone please help!
                                             
                                          
                                          
                                        
											 
											Answer:
Step-by-step explanation:
g(r) = 0 ⇒ [tex]r^{2} -2r-17=0[/tex] ⇒r=[tex]1+3\sqrt{2}[/tex]và r=[tex]1-3\sqrt{2}[/tex]