Penjelasan dengan langkah-langkah:
[tex] \frac{2 \sqrt{3} - 6 \sqrt{5} }{3 \sqrt{7} - 6 \sqrt{3} } \times \frac{{3 \sqrt{7} + 6 \sqrt{3} }}{{3 \sqrt{7} + 6 \sqrt{3} }} = \frac{6 \sqrt{21} + 12 \sqrt{9} - 18 \sqrt{35} - 36 \sqrt{15} }{9 \sqrt{49} - 36 \sqrt{9} } = \frac{6 \sqrt{21} + 12.3 - 18 \sqrt{35} - 36 \sqrt{15} }{9.7 - 36.3} = \frac{6 \sqrt{21} + 36 - 18 \sqrt{35} - 36 \sqrt{15} }{63 - 108} = \frac{36 + 6 \sqrt{21} - 18 \sqrt{35} - 36 \sqrt{15} }{ - 45} = \frac{12 + 2 \sqrt{21} - 6 \sqrt{35} - 12\sqrt{15} }{ -15} [/tex]