root20+root12+cube root729 - 4/root5 - root3 - root81
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2root5 +2root 3 +9 -4root5/5 -root3 -9
2root 5 +root3 -4root5/5
root3 + 6root5/5
=(5root3 +6root5 )/5 Ans
2root 5 +root3 -4root5/5
root3 + 6root5/5
=(5root3 +6root5 )/5 Ans
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I hope you have justified in this solution
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