Question

Los botones pjina 40 libro de matemáticaa
$543 \div ( { \frac{ {y { \div \times \\ \\ \frac{ {y {yy}^{?} }^{?} }{?} }^{2} }^{?} \times \frac{?}{?} }{?} }^{2}$
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Answer 1

I dont know  I'm sorry, I do not understand