Answer
-243
Work Step by Step
We first find the x coordinate of the minimum:
$$=\frac{-10+8}{2} =-1$$
Thus, the minimum is:
$$ =3(-1+10)(-1-8) = -243$$
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.