= 6√3*√3 + √30*√3 = 6*3 + √(30*3) = 18+√90 = 18+√9*10=18 +3√10
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= 16+16√16+64+16 -16√16+ 64 = 16+64+16+64= 32+128= 160
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= 5√6+ 4√(4*6)-10 - 8√4 = 5√6+8√6-10 -8*2 = 13√6 - 26
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= 8 - 4√8 + 4 + 8 + 6√8 + 9 = 29 + 2√(4*2) = 29 + 4√2