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= 2√3(2√5 + 3√2)/(4*5 - 9*2)
= (4√15 + 6√6)/2
=2√15 + 3√6
= 2√3 / ( 2√5 - 3√2) × 2√5+3√2 / 2√5+3√2
= 2√3 (2√5+3√2) / 4·5 - 9·2
= 4√15 + 6√6 / 20-18
= 4√15 + 6√6 / 2
= 2√15 + 3√6