tolong ajarkan ya kakak

a. [tex]4\sqrt{2}+3\sqrt{4*2}-\sqrt{16}=4\sqrt{2}+3\sqrt{4}\sqrt{2}-4=4\sqrt{2}+6\sqrt{2}-4=10\sqrt{2}-4[/tex]

b. [tex]\sqrt{486}-\sqrt{6}+\sqrt{54}=\sqrt{81}\sqrt{6}-\sqrt{6}+\sqrt{9}\sqrt{6}=9\sqrt{6}-\sqrt{6}+3\sqrt{6}=11\sqrt{6}[/tex]

c. [tex]4\sqrt{3}+3\sqrt{12}-\sqrt{27}=4\sqrt{3}+3\sqrt{4}\sqrt{3}-\sqrt{9}\sqrt{3}=4\sqrt{3}+6\sqrt{3}-3\sqrt{3}=7\sqrt{3}[/tex]