Answer
$14a^5-2a^2-a-\frac{2}{3}$
Work Step by Step
Combine like terms to obtain:
$=(20a^5-6a^5)-2a^2-a+(\frac{1}{3}-1)
\\=14a^5-2a^2-a+(\frac{1}{3}-\frac{3}{3})
\\=14a^5-2a^2-a-\frac{2}{3}$
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