Tentukan fungsi kuadrat x^2-5x-1=0

x1 dimisalkan p

x2 dimisalkan q

p+q = -b/a = 5

p.q = c/a = -1

x1+x2 = (2p+1) + (2q+1) = 2(p+q) + 2 = 2(5) + 2 = 12

x1.x2 = (2p+1)(2q+1) = 4(p.q)+2(p+q)+1 = 4(-1)+2(5)+1 = 7

PK Baru = x²-(x1+x2)x+(x1.x2) = x²-12x+7

Maaf kalau salah