Răspuns:
[tex] - \sqrt{18} = - \sqrt{2 \times {3}^{2} } = - 3 \sqrt{2} [/tex]
[tex] \sqrt{32} = \sqrt{ {2}^{5} } = 4 \sqrt{2} [/tex]
[tex] - 3 \sqrt{2} \times 4 \sqrt{2} = - 3 \times 4 \times 2 = - 24[/tex]
