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pq = -5/2
x1 + x2 = 2p + 1 + 2q + 1
= 2 + 2(p+q)
2 + 2(-3/2)
=-1
x1 x2 = (2p + 1)(2q + 1)
= 4 pq + 2(p+q) +1
= 4 (-5/2) + 2 (-3/2) +1
=-10 -3 + 1
= - 12
persamaan kuadrat baru
= x^2 -(x1+ x2)x+ x1x2
= x^2 -(-1) +(-12)
= x^× + x -12
maaf kalo salah