Beispiel Nr: 04
$(ax - b)^{2} = a^{2}x^{2} - 2\cdot a\cdot b \cdot x+ b^{2} \\ (a - b)^{2}\\ \textbf{Gegeben:} \\ (1\frac{1}{4}x - \frac{4}{5})^{2}\\ \\ \textbf{Rechnung:} \\\text{2. Binomische Formel} \\(1\frac{1}{4}x-\frac{4}{5})^{2}=\left(1\frac{1}{4}\right)^{2}x^{2}-2\cdot1\frac{1}{4}\cdot\frac{4}{5}\cdot x+\left(\frac{4}{5}\right)^{2} \\(1\frac{1}{4}x-\frac{4}{5})^{2}=1\frac{9}{16}x^2-2x+\frac{16}{25} $