2 akar 2 + akar 32 - akar 18

2 akar 2 + akar 16x2 - akar 9x2
2 akar 2 + 4 akar 2 - 3 akar 2
6 akar 2 - 3 akar 2
3 akar 2

[tex]2 \sqrt{2} + \sqrt{32}- \sqrt{18}\\ = 2 \sqrt{2} + \sqrt{16 \times 2}- \sqrt{9 \times 2}\\ = 2 \sqrt{2} + \sqrt{16}\times \sqrt{2}- \sqrt{9}\times \sqrt{2}\\ = 2 \sqrt{2}+4\sqrt{2}-3\sqrt{2}\\ =(2+4-3)\sqrt{2}\\ \bold{=3\sqrt{2}} [/tex]