[tex] \sqrt{8} \times \sqrt{10} \times \sqrt{5} - \sqrt{450} \div ( - \sqrt{2} ) = [/tex]
[tex] \sqrt{400} - \sqrt{450} \div ( - \sqrt{2} ) = [/tex]
[tex] \sqrt{400} + \sqrt{450} \div \sqrt{2} = [/tex]
[tex] \sqrt{400} + \sqrt{225} = [/tex]
[tex]20 + \sqrt{225} = [/tex]
[tex]20 + 15 = [/tex]
[tex] = 35[/tex]
