Question
Simplify the following expression:$(11+\sqrt{11})(11-\sqrt{11})$
✓
Answer
$(11+\sqrt{11})(11-\sqrt{11})$ As we know, $(a + b)(a - b) = (a^2 - b^2)$
So, $11^2 - 11$
$121 - 11 = 110$
So, $11^2 - 11$
$121 - 11 = 110$
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