State the discriminant of the quadratic

Question

10ײ - 7×- 3 = 0

Answer 1

a = 10, b = -7 and c = -3

 

the discrimminant is   b^2 - 4 *a*c =

 

           (-7)^2 - 4(10)(-3) =

 

      49 - 4(10)(-3) =

  

        49 - (-120) =

 

      49 + 120 =

 

     169 =

 

    13^2 = 13*13

 

since it is a perfect square, the equation has two rational roots