1.

B TRl MR 5 Qv‘p Y1 oLH)

Answer»

8m³ + 9m² + 5m - 2 - (5m³ -3m² + 7m -8)8m³ - 5m³ + 9m² + 3m² + 5m - 7m -2 + 83m³ + 12m² -2m + 6



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