Beispiel Nr: 24
$(ax+ b)\cdot (ax - b) = a^{2}x^{2} - b^{2} \\ (a + b)\cdot (a - b)\\ \textbf{Gegeben:} \\ (5\frac{1}{3}x + \frac{1}{2})(5\frac{1}{3}x - \frac{1}{2})\\ \\ \textbf{Rechnung:} \\\text{3. Binomische Formel} \\(5\frac{1}{3}x+\frac{1}{2})(5\frac{1}{3}x-\frac{1}{2})=5\frac{1}{3}^{2}x^{2}-\frac{1}{2}^{2} \\(5\frac{1}{3}x+\frac{1}{2})(5\frac{1}{3} x-\frac{1}{2})= 28\frac{4}{9}x^2-\frac{1}{4} $