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