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f(-2) = 16
p(-2) + q = 16
-2p + q = 16 ....(1)
f(6) = -24
p(6) + q = -24
6p + q = -24 ....(2)
eliminasi q dari (1) dan (2) untuk mencari nilai p :
-2p + q = 16
6p + q = -24
__________ -
-8p = 40
p = 40/-8 = -5
masukkan nilai p ke (1) atau (2) (pilih salah 1) :
(1) -2p + q = 16
-2(-5) + q = 16
10 + q = 16
q = 16 - 10 = 6
(2) 6p + q = -24
6(-5) + q = -24
-30 + q = -24
q = -24 + 30 = 6
pq + q^2
= (-5)(6) + (6)^2
= -30 + 36 = 6
^ = pangkat
maaf kalau salah
semoga membantu