Answer
$$ 32.5w^4 -23.2w -4.4$$
Work Step by Step
Recall, standard form is $ax^2+bx+c$. Thus, combining like terms, we find:
$$(15.6+16.9)w^4 +(-14-9.2)w -4.4 \\ 32.5w^4 -23.2w -4.4$$
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