Question

(1/2x-2/5)² expand the following​

Answer 1

Answer:

using identity no. (2)

${(x - y)}^{2} = {x}^{2} + {y}^{2} - 2xy \\ \\ { \frac{1}{2x} }^{2} + { \frac{(2}{5)} }^{2} - 2 \times \frac{1}{2x} . \frac{2}{5} \\ \\ \frac{1}{4 {x}^{2} } + \frac{4}{25} - \frac{2}{5x}$

$hope \: it \: helps \: u$

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Answer 2

Answer:

Hope it works................................................™✌️✌️