Răspuns:
[tex]x = |( - \sqrt{2} ) {}^{3} + ( - \sqrt{2} ) {}^{5} | \div ( - 2 \sqrt{6} ) \\ [/tex]
[tex]x = |( - \sqrt{2 {}^{3} }) + ( - \sqrt{2 {}^{5} } )| \div ( - 2\sqrt{6)} [/tex]
[tex]x = | - 2 \sqrt{2} -4 \sqrt{2} | \div ( - 2 \sqrt{6} )[/tex]
[tex]x = | - 6 \sqrt{2} | \div ( - 2 \sqrt{6} )[/tex]
[tex]x = 6 \sqrt{2} \div ( - 2 \sqrt{6} )[/tex]
[tex]x = - \sqrt{3} [/tex]