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2p - 2q²=-10 |x1
6p²+2q²=34
2p - 2q²=-10 jumlahkan agar 2q² menjadi nol.
6p²+2p- 24=0
(6p+6 )(p-4)=0
p=-1. atau p=4
subtitusi nilai p. jika p=-1
2p - 2q²=-10
2(-1) - 2q²=-10
-2 - 2q²=-10
2 + 2q²=10
2q²=8
q²=4=4
q=2
selanjutnya subtitusi jika p