Answer
$f(-3)=-133$
Work Step by Step
Step 1. Based on the Remainder Theorem, the value of $f(c)$ can be obtained as the remainder of $f(x)$ divided by $x-c$.
Step 2. The coefficients of the dividend $f(x)$ can be identified in order as $\{3,-7,-2,5\}$ and the divisor is $x+3$; use synthetic division as shown in the figure to get the quotient and the remainder.
Step 3. We can identify the result as $f(x)=(3x^2-16x+46)(x+3)-133$; thus we have $f(-3)=-133$.
