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Solving a Quadratic Equation by Completion of Squares Method

Solve 21 m 2...

Question

Solve
${21 m}^{2} \div 7 m$

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Solution

$\frac{21 m^{2}}{7 m} = 3 m$ .

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21 m^{2} + 7 m = 0

21 m^{2} \div 7 m

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