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1/u = 1/f -1/v
1/v = 1/u + 1/f
Answer:
the simplest form of the given expression is 
Step-by-step explanation:
Given;

The above expression can be simplified as follows;

Therefore, the simplest form of the given expression is 
Step-by-step explanation:
5m³ + 2m - 7m³ - 8m
= -2m³ -6m
= -2m(m² + 3)