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MathJax support

 ·   ·  ☕ 1 ĺˆ†ă§čŞ­ă‚ăžă™
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When \$a \ne 0\$, there are two solutions to \$(ax^2 + bx + c = 0)\$ and they are
\$\$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.\$$

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