What is the value of the discriminant for this equation?
4x^{2}-9x-4 = 0
a = 4, b = -9, c = -4
b^{2} - 4ac = (-9)2 - 4(4)(-4) = 145 <==Answer
What is the value of the discriminant for this equation?
4x^{2}-9x-4 = 0
a = 4, b = -9, c = -4
b^{2} - 4ac = (-9)2 - 4(4)(-4) = 145 <==Answer
Comments
is the problem supposed to read (2x)^2 or (2x)*2? because that changes the answer completely.