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Type text in the box below. Include some math: enter MathML as MathML tags, and wrap TeX in $...$ or $$...$$ delimiters (or (...) and [...]), and AsciiMath in `...` delimiters. The text you enter is actually HTML, so you can include tags if you want; but this also means you have to be careful how you use less-than signs, ampersands, and other HTML special characters within your math (surrounding them by spaces should be sufficient).
When $a ne 0$, there are two solutions to (ax^2 + bx + c = 0) and they are
$$x = {-b pm sqrt{b^2-4ac} over 2a}.$$
Output:
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