Question

X^2+y^2/xy при x=-2,y=5

Answer 1

${x}^{2} + \frac{ {y }^{2} }{xy}$
при х = -2, у = 5:
$( - 2) {}^{2} + \frac{ {5}^{2} }{ - 2 \times 5} = 4 + \frac{25}{ - 10} = \frac{ - 40}{ - 10} + \frac{25}{ - 10} = \frac{ - 15}{ - 10} = 1.5$