The polynomial is
.
For a trinomial to be factorable as a perfect square, the first and last terms must be perfect squares and the middle term must be two times the square roots of the first and last terms.
\ 1. Is the first term a perfect square? Yes,
.
2. Is the last term a perfect square? No,
.
Since the last term does not satisfy the required condition,
is not a perfect square trinomial.
No, the polynomial,
is not a perfect square trinomial.