Question

# If $$m=2$$, find the value of:$$m - 2, \ 3m-5, \ 9-5m$$, $$3{ m }^{ 2 }-2m-7$$ , $$\dfrac { 5m }{ 2 } -4$$

Solution

## $$m=2$$1. $$m-2=0$$2. $$3m-5=3\times 2-5=1$$3. $$9-5m=-1$$4. $$3m^2-2m-7=12-4-1$$ $$=7$$5. $$\dfrac{5m}{2}-4=1$$.Maths

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