Răspuns:
[tex]2 \times 2 + 7 \div 4 \sqrt{3} \\ \\ = 4 + \frac{7}{4 \sqrt{3} } \\ \\ = 4 + \frac{7}{ 4\sqrt{3} } \times \frac{ \sqrt{3} }{ \sqrt{3} } \\ \\ = 4 + \frac{7 \sqrt{3} }{4 \sqrt{3} \sqrt{3} } \\ \\ = 4 + \frac{7 \sqrt{3} }{4 \times 3} \\ \\ = 4 + \frac{7 \sqrt{3} }{12} [/tex]
