bentuk sederhana dari √72+√32-√18+7√2 adalah

[tex] \sqrt{72} + \sqrt{32} - \sqrt{18} + 7 \sqrt{2} \\ \sqrt{9 \times 8} + \sqrt{16 \times 2} - \sqrt{9 \times 2} + 7 \sqrt{2} \\ 3 \sqrt{4 \times 2} + 4 \sqrt{2} - 3 \sqrt{2} + 7 \sqrt{2} \\ 3 \times 2 \sqrt{2} + 4 \sqrt{2} - 3 \sqrt{2} + 7 \sqrt{2} \\ 6 \sqrt{2} + 4 \sqrt{2} - 3 \sqrt{2} + 7 \sqrt{2} \\ 14 \sqrt{2} [/tex]