Question

expand each of the following 1) (x/2-y/3) ^2​

Answer 1

$= ( \frac{x}{2})^{2} - 2 \times \frac{x}{2} \times \frac{y}{3} + (\frac{y}{3})^{2}$

$= \frac{x^{2} }{4} - \frac{xy}{3} + \frac{y^{2} }{9}$