6/√7-2 = pake cara kak

[tex] \frac{6}{ \sqrt{7} - 2 } = \\ = \frac{6}{ \sqrt{7} - 2 } \times \frac{ \sqrt{7} + 2}{ \sqrt{7} + 2} \\ = \frac{6( \sqrt{7} + 2)}{7 - 4} \\ = \frac{6( \sqrt{7} + 2) }{3} \\ = 2( \sqrt{7} + 2) \\ = 4 + 2 \sqrt{7} [/tex]