(2\sqrt{15}+3\sqrt{17})(3\sqrt{17}-2\sqrt{15})3=(3\sqrt{17})^2-(2\sqrt{15})^2=552 " alt="\sqrt{24}+\sqrt{54}-\sqrt{96}=\sqrt{6\cdot4}+\sqrt{6\cdot9}-\sqrt{6\cdot16}= 2\sqrt{6}+3\sqrt{6}-4\sqrt{6}=\sqrt{6}
(2\sqrt{15}+3\sqrt{17})(3\sqrt{17}-2\sqrt{15})3=(3\sqrt{17})^2-(2\sqrt{15})^2=552 " align="absmiddle" class="latex-formula">