SOLUTION: Find the constant term that should be added to make the following expression a perfect square trinomial. x^2 + 3x answer choice of 9, 9/4, 9/2 or 3/2 my answere is 9/

Question 30611: Find the constant term that should be added to make the following expression a perfect square trinomial.
x^2 + 3x

answer choice of 9, 9/4, 9/2 or 3/2
my answere is 9/2 but am not confident it is correct
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
To make into a perfect square trinomial, you need to add the square of half the coefficient of x. The coefficient of x is 3, so the square of half that is
Check:
=
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