If one of the zeros of the quadratic polynomial (a-1)x2 +ax+1 is -3 then find the value of a

If one of the zeros of the quadratic polynomial (a-1)x2 +ax+1 is -3 th

1.	If one of the zeros of the quadratic polynomial (a-1)x2 +ax+1 is -3 then find the value of a
Answer» -1 -1 a=-1