" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
Nomor 13
2x² + 3x - 5 = 0
jadi a = 2,
b =3
c =-5
x₁ + x₂ = -b/a = -3/2 = -1 1/2 (C)
13. 2x₂ + 6x -1 = 0
a = 2
b = 6
c = -1
p+q = -b/a = -6/2 = -3
p.q = c/a = -1/2
p²+q² = (p+q)² - 2pq
= (-3)² - 2(-1/2)
= 9 +1
= 10 (E)