Identify values: Identify the values of a, b, and c from the quadratic equation in the form ax2+bx+c=0. Comparing 4u2+8u+4=0 with ax2+bx+c=0, we find: a=4b=8c=4
Calculate discriminant: Use the discriminant formula D=b2−4ac to calculate the discriminant of the quadratic equation.Substitute 4 for a, 8 for b, and 4 for c in the formula.D=(8)2−4×4×4
Find value: Perform the calculations to find the value of the discriminant.D=64−4×4×4D=64−64D=0