Answer:
16x² +48x +36
Explanation:
A perfect square trinomial is of the form ...
(a +b)² = a² +2ab +b²
We want to match this form.
__
comparing terms
Comparing the known terms, we see ...
16x² = a² ⇒ a = 4x
36 = b² ⇒ b = 6
filling in the missing term
The missing term is the linear term:
2ab = 2(4x)(6) = 48x
? = 48