Question

calcule 5✓8+2✓2-3✓32+7✓18

Answer 1

5$\sqrt{8}$+2$\sqrt{2}$-3$\sqrt{32}$+7$\sqrt{18}$

10$\sqrt{2}$+2$\sqrt{2}$-12$\sqrt{2}$+21$\sqrt{2}$

33$\sqrt{2}$-12$\sqrt{2}$

R: 21$\sqrt{2}$