Answer:
f(x) = (x +3)(x^2 -18x +49) -139
Explanation:
The synthetic division tableau is attached. The coefficients of the quotient are ...
1, -18, 49
and the remainder is -139.
So, in the desired form, f(x) can be written as ...
f(x) = (x +3)(x^2 -18x +49) -139