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Zad.1.

\begin{equation}
\ f_1(x) = log_2(x^3) 
\end{equation}
\begin{equation}
\begin{split}
\ f_2(x) = 48x^7 - 76x^6 - 123x^5 + 8745x^4 +\\
+ 213x^3 - 983x^2 + 1863x - 124135 
\end{split}
\end{equation}
\begin{equation}
\ f_3(x) = \pi x^2
\end{equation}

Zad. 2.


\begin{align*}
\tag{wzór 4}
 f(x) = ax^2 + bx + c && trójmian~kwadratowy 
\end{align*}
\begin{align*}
\tag{5 wzór}
x_1 = \frac{-b-\sqrt{\Delta}}{2a} && x_2 = \frac{-b-\sqrt{\Delta}}{2a}
\end{align*}

a teraz wzór na delte

\begin{align*}
\Delta = 4ac - b^2





 
 
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