Answer :
x^2 + 4x + 4 = 0
d = b^2 - 4ac, where a = 1, b = 4 and c = 4
d = 4^2 - 4 x 1 x 4
d = 16 - 16 = 0
Since d = 0, there is one real solution to the equation.
d = b^2 - 4ac, where a = 1, b = 4 and c = 4
d = 4^2 - 4 x 1 x 4
d = 16 - 16 = 0
Since d = 0, there is one real solution to the equation.