Which statements are correct? Check all that apply. The solution b = 21 is a true solution to the equation sqrt(b + 4) = 5 . The solution g = 6 is an extraneous solution to the equation sqrt(6 - g) = 0 The solution s = 1 is an extraneous solution to the equation sqrt(s) = - 1 . The solution w = 8 an extraneous solution to the equation sqrt(2w) = - 4 The solution x = - 4 is a true solution to the equation sqrt(- x) = - 2