The polynomial function is
and Hint :
is a one factor of f.
Rewrite the expression in long division form .
The zero is included for missing term x in the divisor.
\By the division algorithm theorem, the result of the division is .
The factoriziation of f(x) is .
Consider the quadratic factor and solve by using quadratic formula.
The complete factoriziation of f(x) is .
The complete factoriziation of f(x) is .