if (x-a) is 1 of the factor of the polinomial ax^2+bx+c, then 1 of the roots of ax^2+bx+c=0 is Share with your friends Share 2 Lovina Kansal answered this Dear student Given x-a is a factor of polynomial f(x)=ax2+bx+c.So, x-a=0 ⇒x=a is a root of the given polynomial. Regards -11 View Full Answer