21+8root5+21-8root 5 solve this
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the correct answer is 121
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Heya frnd ur ans;
21+8√5+21-8√5
(8√5-8√5)will cut because of opposite signs.
So the ans is
21+21
42
21+8√5+21-8√5
(8√5-8√5)will cut because of opposite signs.
So the ans is
21+21
42
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