Question

x minus y whole square divided X is equals to a square

Answer 1

$\frac{ {(x - y)}^{2} }{x} = {a}^{2} \\ = > a = \frac{x - y}{ \sqrt{x} } \\ = > a = \frac{(x - y)( \sqrt{x} )}{ \sqrt{x} \times \sqrt{x} } \\ = > a = \frac{x \sqrt{x} - y \sqrt{x} }{x}$