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kita ganti +/-
x1 jadi +
x2 jadi -
jadi x = 3/4 atau x = 1/2
Untuk:
(2x+1)=0 maka 2x=-1 maka x=-1/2
(4x-3)=0 maka 4x=3 maka x=3/4
Akar2nya : x=-1/2 dan x=3/4