" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a+b = 2+√7+2-√7 = 2+2 = 4
ab = (2+√7)(2-√7) = 4-7 = -3
persamaan kuadratnya adalah
x² - (a+b)x + ab = 0
x² - 4x - 3 = 0