Factor each perfect square trinomial.

\(9x^2 + 24xy + 16y^2\)

\((3x + 4y)^2\)

\(81x^2 - 36xy + 4y^2\)

\((9x - 2y)^2\)

\(x^2 + 6x + 9\)

\((x + 3)^2\)

\(x^2 + 10x + 25\)

\((x + 5)^2\)

\(4x^2 + 12x + 9\)

\((2x + 3)^2\)

\(9a^2 + 30ab + 25b^2\)

\((3a + 5b)^2\)

Determine whether each trinomial is a perfect square trinomial. Write *yes* or *no.* If so, factor it.

\(4y^2 + 12y + 9\)

yes, \((2y + 3)^2\)

\(9x^2 - 6x + 4\)

no