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b. 2q
2. 4x²y + 2xy - 12xy²
2xy(2x + 1 - 6y)
3. 3b(2a + c) - 2a(3 - 2b) - 3bc + 2a
6ab + 3bc - 6a + 4ab - 3bc + 2a
6ab + 4ab + 3bc - 3bc - 6a + 2a
10ab - 4a
2a(5b - 2)
yang lainusaha dulu ya.... biar pinter!!!