\begin{equation}(x-4)(x-8)=0\end{equation}

\begin{equation}10(x-1)x=0\end{equation}

\begin{equation}(4x-9)(x-8)=0\end{equation}

\begin{equation}(5x+6)(5x-6)=0\end{equation}

\begin{equation}(9x-10)(x-10)=0\end{equation}

\begin{equation}x^{2}+11x+24=0\end{equation}

\begin{equation}x^{2}=(-9)x-14\end{equation}

\begin{equation}x^{2}+20x+100=0\end{equation}

\begin{equation}36x^{2}-49=0\end{equation}

\begin{equation}-(x^{2}+4x-32)=0\end{equation}

\begin{equation}(-7)(x^{2}+4x-21)=0\end{equation}

\begin{equation}2x^{2}+28x+30=0\end{equation}

\begin{equation}-(9x^{2}+7x-40)=0\end{equation}

\begin{equation}8x^{2}+26x-63=0\end{equation}

\begin{equation}8(x^{2}-16)=0\end{equation}

\begin{equation}10(16x^{2}+32x+16)=0\end{equation}

\begin{equation}32x^{2}=72\end{equation}

\begin{equation}(-7)(x^{2}-16x+64)=0\end{equation}

\begin{equation}25x^{2}-10x+1=0\end{equation}

\begin{equation}3(9x^{2}+6x+1)=0\end{equation}

\begin{equation}5(64x^{2}-16x+1)=0\end{equation}

\begin{equation}x^{2}+2x+1=0\end{equation}

\begin{equation}36x^{2}=(\frac{7}{3})^{2}\end{equation}