Question

aduceti la o forma cea mai simpla expresia:8radical din 48-8radical din 80+5radical din405-7radical din147

Answer 1

8$\sqrt{48}$-8$\sqrt{80}$+5$\sqrt{405}$-7$\sqrt{147}$=32$\sqrt{3}$-32$\sqrt{5}$+45$\sqrt{5}$-49$\sqrt{3}$=13$\sqrt{5}$-17$\sqrt{3}$