1. 15x²-17x²
2. -18y³ + 13y³
3. 2 ab + 5ab - 19a
4. fg+5g-g+3f
5.6lm²-5l²m - 17lm² + 21l²m
6. 50xy-55xy² + 63xy + 70xy²
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1. 15x²-17x²
2. -18y³ + 13y³
3. 2 ab + 5ab - 19a
4. fg+5g-g+3f
5.6lm²-5l²m - 17lm² + 21l²m
6. 50xy-55xy² + 63xy + 70xy²
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Answer:
1. -2x²
2. -5y³
3. 7ab-19a
4. fg + 4g +3f
5. -11lm² + 16l²m
6. 113xy + 15xy²