Answer:
[tex]x^2+12x+27[/tex]
Step-by-step explanation:
Your input: multiply (x+3)(x+9) using FOIL.
=(x2)+(3x)+(9x)+(27)
=x^2+12x+27.
Answer: (x+3)(x+9)=x^2+12x+27.
Remember, FOIL is First, Outer, Inner, Last.