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jadi faktornya = (3x + 4) dan (x - 5)
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5(x+2) + 3 = 2x - 2
5x + 10 + 3 = 2x - 2
5x + 13 = 2x - 2
5x - 2x = -2 -13
3x = -15
x = -15/3
x = -5
x - 4 = -5 - 4
= - 9