A
36
B
34
C
31
D
25
Persamaan kuadrat x^+ 5x – 3=0 mempunyai akar p dan q nilai p^+q^ adlh
X² + 5x – 3 = 0
p + q = -b/a = -5
pq = c/a = -3
p² + q² = (p + q)² – 2pq
= (-5)² – 2(-3) = 25 + 6
= 31
A
36
B
34
C
31
D
25
Persamaan kuadrat x^+ 5x – 3=0 mempunyai akar p dan q nilai p^+q^ adlh
X² + 5x – 3 = 0
p + q = -b/a = -5
pq = c/a = -3
p² + q² = (p + q)² – 2pq
= (-5)² – 2(-3) = 25 + 6
= 31