Answer
$8x^{3}$-$x^{2}$-5x-3
Work Step by Step
Original expression is given as
($8x^{3}$-5x+1)-($x^{2}$+4)
Distribute the negative to the second parenthesis.
$8x^{3}$-5x+1-$x^{2}$-4
Combine like terms
$8x^{3}$-$x^{2}$-5x+1-4
$8x^{3}$-$x^{2}$-5x-3
