Answer
$4r^3-r^2-8r-10$.
Work Step by Step
The given polynomial is
$=(-r-10)-(-4r^3+r^2+7r)$
Clear the parentheses.
$=-r-10+4r^3-r^2-7r$
Group like terms.
$=4r^3-r^2-7r-r-10$
Combine like terms.
$=4r^3-r^2-8r-10$.
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