<svg xmlns="http://www.w3.org/2000/svg" xmlns:wrs="http://www.wiris.com/xml/mathml-extension" height="44" width="77" wrs:baseline="26"><!--MathML: <math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced><mrow><msup><mi mathvariant="normal">x</mi><mn>2</mn></msup><mo>+</mo><mfrac><mn>1</mn><mrow><mn>9</mn><msup><mi mathvariant="normal">x</mi><mn>2</mn></msup></mrow></mfrac></mrow></mfenced></math>--><defs><style type="text/css">@font-face{font-family:'math117e62166fc8586dfa4d1bc0e17';src:url(data:font/truetype;charset=utf-8;base64,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)format('truetype');font-weight:normal;font-style:normal;}@font-face{font-family:'brack_sm2882ad605b1e27be87c7468';src:url(data:font/truetype;charset=utf-8;base64,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)format('truetype');font-weight:normal;font-style:normal;}@font-face{font-family:'bracketse552f5417ff4680c6b50499';src:url(data:font/truetype;charset=utf-8;base64,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)format('truetype');font-weight:normal;font-style:normal;}</style></defs><text font-family="bracketse552f5417ff4680c6b50499" font-size="16" text-anchor="start" x="1.5" y="14">&#x239B;</text><text font-family="brack_sm2882ad605b1e27be87c7468" font-size="16" text-anchor="start" x="1.5" y="19">&#x239C;</text><text font-family="brack_sm2882ad605b1e27be87c7468" font-size="16" text-anchor="start" x="1.5" y="24">&#x239C;</text><text font-family="brack_sm2882ad605b1e27be87c7468" font-size="16" text-anchor="start" x="1.5" y="29">&#x239C;</text><text font-family="bracketse552f5417ff4680c6b50499" font-size="16" text-anchor="start" x="1.5" y="43">&#x239D;</text><text font-family="bracketse552f5417ff4680c6b50499" font-size="16" text-anchor="start" x="70.5" y="14">&#x239E;</text><text font-family="brack_sm2882ad605b1e27be87c7468" font-size="16" text-anchor="start" x="70.5" y="19">&#x239F;</text><text font-family="brack_sm2882ad605b1e27be87c7468" font-size="16" text-anchor="start" x="70.5" y="24">&#x239F;</text><text font-family="brack_sm2882ad605b1e27be87c7468" font-size="16" text-anchor="start" x="70.5" y="29">&#x239F;</text><text font-family="bracketse552f5417ff4680c6b50499" font-size="16" text-anchor="start" x="70.5" y="43">&#x23A0;</text><text font-family="Arial" font-size="16" text-anchor="middle" x="11.5" y="26">x</text><text font-family="Arial" font-size="12" text-anchor="middle" x="18.5" y="19">2</text><text font-family="math117e62166fc8586dfa4d1bc0e17" font-size="16" text-anchor="middle" x="29.5" y="26">+</text><line stroke="#000000" stroke-linecap="square" stroke-width="1" x1="39.5" x2="66.5" y1="20.5" y2="20.5"/><text font-family="Arial" font-size="16" text-anchor="middle" x="53.5" y="15">1</text><text font-family="Arial" font-size="16" text-anchor="middle" x="45.5" y="40">9</text><text font-family="Arial" font-size="16" text-anchor="middle" x="54.5" y="40">x</text><text font-family="Arial" font-size="12" text-anchor="middle" x="61.5" y="33">2</text></svg>