Sederhanakan bentuk a² - b² untuk a = 1/3-2√2 dan b = 1/3+2√2

[tex] a^{2} - b^{2} \\ = (a+b)(a-b)\\ = [( \frac{1}{3} - 2 \sqrt{2}) + (\frac{1}{3} + 2 \sqrt{2})][( \frac{1}{3} - 2 \sqrt{2}) - (\frac{1}{3} + 2 \sqrt{2})] \\ = (\frac{2}{3}) (- 4 \sqrt{2}) \\ = - \frac{8 \sqrt{2}}{3} [/tex]