Answer
$y^2-19y+84$
Work Step by Step
Using $(a+b)(c+d)=ac+(ad+bc)+bd$, or the FOIL Method, the given expression, $
(y-7)(y-12)
,$ is equivalent to
\begin{array}{l}\require{cancel}
y^2+(-12y-7y)+84
\\\\=
y^2-19y+84
.\end{array}
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.