حل تشریحی سوال شماره 14 حسابان 2

$f\prime (x)=3x^2-12=0\Rightarrow \{\begin{array}{c}x=2\\ x=-2\end{array}\times (0/25)\begin{array}{c}f(-1)=11(0/25)\\ f(2)=-16(0/25)\\ f(3)=-9(0/25)\end{array}\}\Rightarrow$

$max=11$ مطلق