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II = salah --> harusnya (2x-3)(2x+3)
III = benar
IV = salah
jawaban C
2. 5x-4 = 2x+2
5x-2x = 2+4
3x = 6
x = 6/3 = 2
Nilai 4x-3 = 4.2 - 3 = 8-3 = 5 (B)