Answer:
[tex]12\pi x^{2} +21\pi x+9\pi[/tex]
Step-by-step explanation:
[tex]V=Bh=\pi r^{2} h = \pi (4x+3)^{2} (3x+3) = \pi (12x^{2}+12x+9x+9 )=12\pi x^{2} +21\pi x+9\pi[/tex]
