Given that

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Verification : (x - 4)

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

f(4) = 128 - 96 + 20 + 4

\

f(4) = 56 (same remainder)

\

\