Question
Simplify the following expression:$(3+\sqrt{3})(3-\sqrt{3})$
✓
Answer
$(3+\sqrt{3})(3-\sqrt{3})$As we know, $(a + b)(a - b) = (a^2 - b^2)$
$=9-\sqrt{3\times3}$
$=6$
$=9-\sqrt{3\times3}$
$=6$
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