Please help ASAP 18 pts + brainliest to right/best answer

Answer:
3(x^2+3)
Step-by-step explanation:
3x^2+9
Factor out a 3
3(x^2+3)
Find the GCF (Greatest Common Factor)
GCF = 3
Factor out the GCF (Write the GCF first and then in parenthesis, divide each term by the GCF)
3(3x^2/3 + 9/3)
Simplify each term in the parenthesis
3(x^2 + 3)