Question

a2-b2/b2-a2
$a \ { - b { \frac{b { - a {?}^{2} }^{2} }{?} }^{?} }^{2} }$
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Answer 1

Answer:

${a}^{2} - \frac{ {b}^{2} }{ {b}^{2} } - {a }^{2} = 0$

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