Calculus
f−′(2)=−4f_{-}^{\(\prime\)}\(\left\)(2\(\right\))=-4
f+′(2)=3f_{+}^{\(\prime\)}\(\left\)(2\(\right\))=3
f+′(2)=−3f_{+}^{\(\prime\)}\(\left\)(2\(\right\))=-3
f−′(2)=6f_{-}^{\(\prime\)}\(\left\)(2\(\right\))=6