c1222806(비교)

<math>a^2+b^2=c^2</math>

[math(\Huge {x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}})]

{{{#!folding [펼치기(접지마세요)]

[math(x)]+[math(y)]

[math(xy)]dd[math(ss)]

}}}