1. 1/3 * [2/7 * (1/4 - 2/5)]
2. - 1/3 * [2/5 - 1/6 * (2/5 - 1/2)]
3. (x ^ 2 - 9)/(x - 3)
4. (x ^ 2 - x - 12)/(x - 4)
2. - 1/3 * [2/5 - 1/6 * (2/5 - 1/2)]
3. (x ^ 2 - 9)/(x - 3)
4. (x ^ 2 - x - 12)/(x - 4)
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Jawaban:
1. -1/70
2. -5/36
3.
4. (x+3)