sederhanakan 4 per 2+ akar 3

[tex] \frac{4}{2 + \sqrt{3} } \times \frac{2 - \sqrt{3} }{2 - \sqrt{3} } = \frac{4(2 - \sqrt{3} )}{4 - 3} \\ = 8 - 4 \sqrt{3}[/tex]
semoga bermanfaat,,