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sederhanain bagi 2 semuanya
xkuadrat + 2x - 3 = 0
cari 2 angka yg kalo dikali=-3
kalo ditambah=2
berarti 3 dan -1
(x+3) (x-1) = 0
*x+3=0
x=-3
*x-1=0
x=1
x1:2x-2=0
2x=2
x=2/2
x=1
x2:x+3=0
x =-3
jadi akar akar persamaannya={1,-3}