Ein Minuszeichen vor den Bruch setzen. Den Nenner quadrieren.
(Die Variable wird quadriert und in den Nenner geschrieben. Der Bruch wird negativ.)
Beispiel
![[image]](data:image/png;base64,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 "embedded image (png)"){kind=small}
![[image]](data:image/png;base64,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 "embedded image (png)"){kind=small}
![[image]](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGoAAAAyCAIAAAA7ntlaAAAAAXNSR0IArs4c6QAAAAlwSFlzAAAWJQAAFiUBSVIk8AAAAwJJREFUaEPtmj12ozAQgPGexU6RxwngBM72btPh0mm2S7kHMKVzBFdpgk+AT+CXIugu7EgCWfhlI6EZ8ixn1PiBJTHzMdL8iFnbtgm3UAK/QgfyOEmAGp84lPksL0XcdL21oMQnynW+eHg6Ro5ujBZE+MRhnc8e90maSXbp3TxKhOO1IMEnysfX++emrnd/VopflC1ECxJ880292yzjtLjzmw7RggRflMZGIjTjQ2FkfIwPRQA1mK2P8aEIoAaz9TE+FAHUYFrrE827zHhfXg8x1wzGaAH1PnxrtkWWXaZrcKeo8HN/3wwBWsy4XIpZvReLFwpdUDrRLV9HvQQxVPzHWmujKrIk21aNvNVUhZwjrtX3feu8f1JiHtlsswEtec38HG/ki71PlPniKdk29Sb2UpT/Whzb0xW4HN+bsVP+pP4ufD+JRYCuNr6h2y3Z7Dx49nuj9hQQ6CrH2+pLuLHV15M07d2dbVIZcIp1nveTMIUjFw+yCl9neUNDU/icL95pOtDBQ4zQLqH26yO2s49M2Ay9iwhZIXXSC1X7VsaB6xBveyiTZPcLG7e6ma1+TxryHdZdfvj1zzV/89Ev3aHx+a3cW7GhcD3A+uZ3Kdjd6eNcohPl3xfI15453fDZ/9qBreliAe96tkk2FRQ0e5QmuOtchy6wWH93VZdwm76tkbY9QUnVNq4po4pbgQj4rMWoYPaegnNe5/aWLHftRdXJhClcrHfjs3tArPVwOhfxGN8IfLICuk+rerfsBzE+X3yqepxW7ZmdHEmyvxvHPdhilS+/5tMSf7FVCvuJKhT4IOiRdS77cMTEQVdMz19s6WwtwwBF+ysKfIOSoZxYP66rHJKY95STmOLIf8TuS5/2Ku+tghKftj/5uUFcOQtCbNK4T2XPx2QV2eEcQmxSfOLj5OvHrqkfQmw6fDoogtT5uH+L6PsqpNg0m7Jx7IOMkGbuCWdBi412Hea0oXNGhh8EVcWUx3Q4qkRiY/FpMewSmDni7M88cXpOM5pKbE7aUE7sH3kmsq/psgyoAAAAAElFTkSuQmCC "embedded image (png)"){kind=small}
![[image]](data:image/png;base64,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 "embedded image (png)"){kind=small}