(x-5)*(x+1)=0pppppiiiiiiizzzzzz

Question

(x-5)*(x+1)=0pppppiiiiiiizzzzzz

Answer 1

(х-5)*(х+1)=х^2+х-5х-5=х^2-4х-5 Д=4^2-4*1*(-5)=36
х1=(4-6)/2=-1
х2=(4+6)/2=5