Calculate the discriminant of the quadratic expression

Question

4x^2-x-3

Answer 1

discriminant is
b^2 - 4*a*c
where
a = numerical coefficient of x^2
b = numerical coefficient of x
c = the constant
in the problem, 4x^2-x-3, thus
a = 4, b = -1 and c = -3
substituting
(-1)^2 - 4(4)(-3)
1 - (16)(-3)
1 + 48
49

hope this helps~ :)