Svar: #color (indigo) ("Den givne ligning har ONE REAL ROOT," (p = 2) # Forklaring: #D = b ^ 2 - 4ac # # p ^ 2 - 4p + 4 # #D = b ^ 2 - 4ac = 4 ^ 2 - (4 * 1 * 4) = 16-16 = 0 # derfor #color (indigo) ("Den givne ligning har ONE REAL ROOT," (p = 2) #
