Answer
$y^{2+6}=y^{8}$
Work Step by Step
We are given that $y^{2}\times y^{6}=y^{12}$.
However, according to the table at the bottom of page 271, we know that $a^{m}\times a^{n}=a^{m+n}$.
Therefore, $y^{2}\times y^{6}=y^{2+6}=y^{8}$.
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