[tex]a)2 \sqrt{3} \times \sqrt{2} = 2 \sqrt{3 \times 2} = 2 \sqrt{6} [/tex]
[tex]b) \sqrt{5} \times 3 \sqrt{2} = \sqrt{5 \times 2} \times 3 = 3 \sqrt{10} [/tex]
[tex]c)( - 2 \sqrt{7} ) \times \sqrt{14} = - 2 \sqrt{98} = - 14 \sqrt{2} [/tex]
[tex]d) \sqrt{6} \times ( - 4 \sqrt{3} ) = - 4 \sqrt{18} = - 12 \sqrt{2} [/tex]
[tex]e)( - 3 \sqrt{3} ) \times ( - 2 \sqrt{5} ) = 6 \sqrt{15} [/tex]
[tex]f)( - 4 \sqrt{1.2} ) \times \sqrt{2.5} = - 4 \sqrt{ \frac{6}{5} } \sqrt{ \frac{5}{2} } = - 4 \sqrt{ \frac{30}{10} } = - 4 \sqrt{3} [/tex]
