Tolong bantu saya untuk menjawav pertanyaan ini

[tex] = \frac{4}{3 \sqrt{2} + 2 \sqrt{5} } \times \frac{3 \sqrt{2} - 2 \sqrt{5} }{3 \sqrt{2} - 2 \sqrt{5} } \\ = \frac{12 \sqrt{2} - 8 \sqrt{5} }{18 - 20} \\ = \frac{12 \sqrt{2} - 8 \sqrt{5} }{ - 2} \\ = 4 \sqrt{5} - 6 \sqrt{2} [/tex]


Jawaban C

4/(3√2+2√5)
=4/(3√2+2√5)X(3√2-2√5)/(3√2-2√5)
=4(3√2-2√5)/(9.2-4.5)
=12√2-8√5/(18-20)
=12√2-8√5/-2
=-6√2+4√5
jawabannya:C