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34 lines
876 B
Plaintext
34 lines
876 B
Plaintext
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE math
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PUBLIC "-//W3C//DTD MathML 2.0//EN"
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"http://www.w3.org/TR/MathML2/dtd/mathml2.dtd">
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<math xmlns="http://www.w3.org/1998/Math/MathML">
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<mrow>
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<mi>x</mi>
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<mo>=</mo>
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<mfrac>
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<mrow>
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<mo form="prefix">−<!-- − --></mo>
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<mi>b</mi>
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<mo>±<!-- ± --></mo>
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<msqrt>
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<msup>
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<mi>b</mi>
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<mn>2</mn>
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</msup>
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<mo>−<!-- − --></mo>
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<mn>4</mn>
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<mo>⁢<!-- ⁢ --></mo>
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<mi>a</mi>
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<mo>⁢<!-- ⁢ --></mo>
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<mi>c</mi>
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</msqrt>
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</mrow>
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<mrow>
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<mn>2</mn>
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<mo>⁢<!-- ⁢ --></mo>
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<mi>a</mi>
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</mrow>
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</mfrac>
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</mrow>
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</math>
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