Beispiel Nr: 18
$(ax+ b)\cdot (ax - b) = a^{2}x^{2} - b^{2} \\ (a + b)\cdot (a - b)\\ \textbf{Gegeben:} \\ (8x + 1\frac{6}{13})(8x - 1\frac{6}{13})\\ \\ \textbf{Rechnung:} \\\text{3. Binomische Formel} \\(8x+1\frac{6}{13})(8x-1\frac{6}{13})=8^{2}x^{2}-1\frac{6}{13}^{2} \\(8x+1\frac{6}{13})(8 x-1\frac{6}{13})= 64x^2-2,14 $