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Factorise the equation: 4/c²- 2/cd + 1/4d²

Dear Student,

\frac{4}{c^{2}} - \frac{2}{c d} + \frac{1}{4 d^{2}} = {(\frac{2}{c})}^{2} - 2 \times (\frac{2}{c}) \times (\frac{1}{2 d}) + {(\frac{1}{2 d})}^{2} [Using {(a - b)}^{2} = a^{2} + b^{2} - 2 ab] = {(\frac{2}{c} - \frac{1}{2 d})}^{2}

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