Question

find the discriminant of the quadratic equation 2x^2 - 4x+3=0

Answer 1

$2 {x}^{2} - 4x + 3 = 0 \\ a = 2 \: \: \: \: b = - 4 \: \: \: \: c = 3 \\ discriminant = {b}^{2} - 4ac \\ \: \: \: \: \: = {( - 4)}^{2} - 4(2)(3) \\ \: \: \: \: \: = 16 - 24 \\ \: \: \: \: \: = - 8$

Answer 2

2x^2 + 4x + 3 = 0

D = b^2 - 4ac

D = (-4)^2 - 4×2×3

D = 16 - 24

D = -8