Question

3. Find the product of ( √4 y - z/√3)²
$please \: send \: solve \: \\ \: help \: please$
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Answer 1

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Step-by-step explanation:

$(\sqrt{4} y - \frac{z}{ \sqrt{3}} ) {}^{2} \\ = (a - b) {}^{2} = {a}^{2} + {b}^{2} - 2ab \\ = ( \sqrt{4} y) {}^{2} + ( \frac{z}{ \sqrt{3} } ) {}^{2} - 2 \times ( \sqrt{4} y) \times ( \frac{z}{ \sqrt{3} } ) \\ = 4 {y}^{2} + \frac{ {z}^{2} }{3} - \frac{4 yz}{ \sqrt{3} }$

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