Question

$(x - \frac{y}{2})^{2}$

Answer 1

( x - y/2 )²

x² - 2.x.y/2 + (y/2)²

x² - 2xy/2 + y²/4

x² - xy + y²/4

Answer 2

$(x - \frac{y}{2} ) {}^{2}$

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

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