Answer:
(x+3)(x+3)
Step-by-step explanation:
1) this polynomial is in the form of ax^2+bx+c
c=9
b=6
a=1
what*what=c(9)
and what+what=b(6)
3 is the answer to both questions:
now substitute "3x" in place of "6"
x^2+3x+3x+9
split in 2 groups:
group a) (x^2+3x)
gcf of group a=x
x(x+3)
group b) (3x+9)
gcf of group b=3
3(x+3)
combine the numbers OUTSIDE the parantheses
so
(x+3)(x+3)
