Answer
$y^{2}-11yz-11$
Work Step by Step
We are given the expression $-4(yz+3)-7yz+1+y^{2}$.
We can use the distributive property and then group like terms to simplify.
$-4(yz+3)-7yz+1+y^{2}=-4yz-12-7yz+1+y^{2}$
$=(y^{2})+(-(4yz+7yz))+(1+(-12))=y^{2}-11yz-11$
