## Algebra: A Combined Approach (4th Edition)

$(y-1)(8y+9)$
$y+8y^{2}-9$ $8y^{2}+y-9$ $(y-1)(8y+9)$ Check your answer: $(y-1)(8y+9)=8y^{2}+9y-8y-9=8y^{2}+y-9$