Respuesta :

it has no solution because it is not factorable 
x=[tex] \frac{-b+/- \sqrt{b^{2}-4ac } }{2a} [/tex]

a=-1, b=2, c=10

x=[tex] \frac{-2+/- \sqrt{4-4(-1)(10)} }{2(-1)} [/tex]

x=[tex] \frac{-2+/- \sqrt{44}}{-2} [/tex]

x=[tex] \frac{-2+/-2 \sqrt{11}}{-2} [/tex]

x=[tex]{1+/-(-1)\sqrt{11}[/tex]