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Which expression is equivalent to the difference shown?Slenm+8m? = 4m

Which expression is equivalent to the difference shown?Slenm+8m? = 4m-example-1
User Jalanb
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1 Answer

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12 votes

Solution

- The solution steps for the question is given below:


\begin{gathered} (5)/(m)-(m+8)/(m^2-4m) \\ \\ \text{ Factorize the bottom of the right-hand term} \\ (5)/(m)-(m+8)/(m(m-4)) \\ \\ \text{ The LCM of }m\text{ and }m(m-4)\text{ is }m(m-4) \\ \text{ Thus, we have:} \\ \\ (5(m-4))/(m(m-4))-(m+8)/(m(m-4)) \\ \\ \text{ Thus, we can combine both expressions since they have the same denominator} \\ (5(m-4)-(m+8))/(m(m-4)) \\ \\ \text{ Expand the numerator and proceed to simplify} \\ \\ (5m-20-m-8)/(m(m-4))=(4m-28)/(m(m-4))=(4(m-7))/(m(m-4)) \end{gathered}

Final Answer

The answer is:


(4(m-7))/(m(m-4))\text{ \lparen OPTION B\rparen}

User Sefan
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