[tex]6x^{2} + 5x^{2} = x^{2} \\36 + 25 = x^{2} \\61 =x^{2} \\x =\sqrt{61} \\\\2^{2} + y^{2} = 2\sqrt{5}^{2}\4 + y^{2} = 20\\20 - 4 = y^{2} \\\sqrt{16} = y\\y = 4 \\\\5^{2} + z^{2} = 7^{2} \\25 + z^{2} = 49\\49 - 25 = z^{2} \\24 = z^{2} \\z = \sqrt{24} \\z = 2\sqrt{6}[/tex]
