Answer:
There are four correct expressions.
Step-by-step explanation:
Four correct expressions:




Simplify:






<h3>Hope it is helpful....</h3>
X^2 + 6x + 9
x 3
x 3
(x+3) (x+3)
x^2 + 3x + 3x + 9 (FOIL method)
x^2 + 6x + 9 (true)
your answer is 9 as the constant
hope this helps