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{1. Binomische Formel} \\(1\frac{1}{4}x+\frac{4}{5})^{2}=\left(1\frac{1}{4}\right)^{2}x^{2}+2\cdot 1\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} $