Question 296354
(4sqrt3+9sqrt5)
(sqrt3+6sqrt5)
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4*3+9*sqrt15+24sqrt15+54*5
12+270+33sqrt15
282+33sqrt15 
3(94+11sqrt15) ans.
OR:
3(94+11*3.873)
3(94+42.6)
3*136.6
409.8 ans.