Question

(x/y+y/x)^2 expand
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Answer 1

Step-by-step explanation:

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

$\left(\frac{x^{2}+y^{2}}{xy}\right)^{2}$

$\frac{x^{4}+y^{4}+2\left(xy\right)^{2}}{\left(xy\right)^{2}}$

${(a + b)}^{2} = {a}^{2} + {b}^{2} + 2ab$