" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
Y = 2x² + 5x + 4y = x + 6
substitusikan.. artinya menggantikan.. simpelnya :)
y = x + 6
2x² + 5x + 4 = x + 6
2x² + 5x - x + 4 - 6 = 0
2x² + 4x - 2 = 0
x² - x - 1 = 0
a = 1
b = -1
c = -1
rumus abc
x1 = (-b + √(b² - 4ac))/2a
x1 = (1 + √5)/2
x2 = (-b - √(b² - 4ac))/2a
x2 = (1 - √5)/2
utk x1 = (1 + √5)/2
y1 = x + 6
y1 = (13 + √5)/2
utk x2 = (1 - √5)/2
y2 = x + 6
y2 = (13 - √5)/2