simplify (11+√11)(11-√11)
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(a+b)(a-b)=a^2-b^2
ans:11^2-11=121-11= 110
ans:11^2-11=121-11= 110
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(a+b)(a-b)=a^2 - b^2
therefore, 11^2 - (√11)^2
121 - 11
110
(a+b)(a-b)=a^2 - b^2
therefore, 11^2 - (√11)^2
121 - 11
110
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