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 answer is 9/2

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 answer is 9/2

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Question 30610: 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 answer is 9/2 but am not confident it is correct
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!
it should be 9/4
x^2 + 3x + 9/4
4x^2 + 12x + 9
4x^2 + 6x + 6x + 9
2x(2x + 3) + 3(2x + 3)
(2x + 3)^2
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