Question
Simplify the following expression:$(\sqrt{8}-\sqrt{2})(\sqrt{8}+\sqrt{2})$
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Answer
$(\sqrt{8}-\sqrt{2})(\sqrt{8}+\sqrt{2})$As we know, $(a + b)(a - b) = (a^2 - b^2)$
$\sqrt{8\times8}-\sqrt{2\times2}=8-2$
$=6$
$\sqrt{8\times8}-\sqrt{2\times2}=8-2$
$=6$
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