[tex]( \sqrt{32} + \sqrt{28} + \sqrt{288} ) \div 4 = [/tex]
[tex] = (4 \sqrt{2} + 2 \sqrt{7} + 12 \sqrt{2} ) \div 4[/tex]
[tex] = (16 \sqrt{2} + 2 \sqrt{7} ) \div 4[/tex]
[tex] \frac{16 \sqrt{2} + 2 \sqrt{7} }{4} [/tex]
[tex] \frac{2(8 \sqrt{2} + \sqrt{7)} }{4} [/tex]
[tex] \frac{8 \sqrt{2} + \sqrt{7} }{2} [/tex]
