" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x + y - 1 = 0
x = -y + 1 ....persamaan 2
pers.2 substitusikan ke pers.1
(-y + 1)² + y² = 5
y² - 2y + 1 + y² = 5
2y² - 2y + 1 - 5 = 0
2y² - 2y - 4 = 0
y² - y - 2 = 0
(y + 1)(y - 2) = 0
y + 1 = 0 atau y - 2 = 0
y = -1 atau y = 2
untuk y = -1
x = -y + 1 = -(-1) + 1 = 2
untuk y = 2
x = -y + 1 = -(2) + 1 = -1
HP = {(-1,2),(2,-1)}