Răspuns:
A = 2
Explicație pas cu pas:
[tex]A=(8\sqrt{3} +14\sqrt{3} -12\sqrt{3} ):\sqrt{75} \\\\\\A=(22\sqrt{3} -12\sqrt{3} ):5\sqrt{3}\\\\\\A=10\sqrt{3} :5\sqrt{3}\\\\\\\boxed{A=2}[/tex]
