33 Latihan Sederhanakanlah. 1. 15 2 2 45 5 2. 17 4 3 51 5 3. 3 2−12 4 −8 4. − 2− 2 5. 4 3−8 2+12 4 6. 4 2−9 2 2 5+ −6 2 7. 2 2+ −6 2+ −2 8. 15 2 2 45 5 9. 2 2− −15 2 6 2+17 −5 2
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