1. x2 + 2px – 3 = 0
2. (p-1)x2 + (p+2)x – 2 = 0
Persamaan berikut memiliki diskriminan 48. tentukan nilai p!
Jawaban Terkonfirmasi
1.
b²-4ac = 48
(2p)²-4(1)(-3)=48
2p²+12=48
2p²=36
p²=36/2
p²=18
p=√18
p=3√2
2.
b²-4ac = 48
(p+2)²-4(p-1)(-2)=48
p²+4p+4 – (4p-4)(-2) =48
p²+4p+4 – (-8p+8)=48
p²+4p+4 -8p-8=48
p²-4p-4=48