Răspuns:
Explicație pas cu pas:
a) [tex]=2\sqrt{72} (12\sqrt{3} -5\sqrt{3} -4\sqrt{3} )\\=2\sqrt{72} *3\sqrt{3} \\2*6\sqrt{2} *3\sqrt{3} \\36\sqrt{6[/tex]
b) [tex]3\sqrt{48} (12\sqrt{2} -10\sqrt{2} -4\sqrt{2} )\\3\sqrt{48}*(-2\sqrt{2} )\\-3*4\sqrt{3} *2\sqrt{2}\\-24\sqrt{3}[/tex]
