Answer
$8x^{5}+2x^{2}+9x+7$
Work Step by Step
Write each polynomial in standard form
$7+9x+2x^{2}+8x^{5}$
Put the terms in order from largest to smallest
The largest power is 5 so $8x^{5}$ goes first followed by $2x^{2}$ and then
$9x$ and then $7$
$8x^{5}+2x^{2}+9x+7$
