" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x² + 8x - 1 = 0 -----> a = 1 , b = 8 , dan c = -1
Akar akrnya yaitu x1,2
dengan
x1,2 = -b + √b²-4ac / 2a
= - 8 + √8² - 4.1.(-1) / 2.1
= -8 + √64 + 4 / 2
= -8 + √68 / 2
= -8 + √4x17 / 2
= -8 + 2√17 / 2
= -4 + √17
Jadi akr akar persamaannya yaitu -4 + √17 atau -4 - √17.
Semoga membantu... ^_^