标题1

标题2

标题3

标题4

超链接

• 分点

数学公式:
x=y

\begin{aligned}
    ax^3 + bx^2 + cx + d &= 0 \\
    x^3 + \frac{b}{a}x^2 + \frac{c}{a}x + \frac{d}{a} &= 0 \\
    x^3 + \frac{b}{a}x^2 + \frac{c}{a}x &= -\frac{d}{a} \\
    x^3 + \frac{b}{a}x^2 + \frac{c}{a}x + \left(\frac{b}{3a}\right)^3 &= -\frac{d}{a} + \left(\frac{b}{3a}\right)^3 \\
    x^3 + \frac{b}{a}x^2 + \frac{c}{a}x + \frac{b^3}{27a^3} &= -\frac{d}{a} + \frac{b^3}{27a^3} \\
    \left(x + \frac{b}{3a}\right)^3 &= -\frac{d}{a} + \frac{b^3}{27a^3} \\
    \left(x + \frac{b}{3a}\right)^3 &= \frac{b^3 - 27ad}{27a^3} \\
    x + \frac{b}{3a} &= \sqrt[3]{\frac{b^3 - 27ad}{27a^3}} \\
    x &= \sqrt[3]{\frac{b^3 - 27ad}{27a^3}} - \frac{b}{3a}
\end{aligned}