To have a perfect square, the correct option is 16.
Which value is needed in the expression?
Remember that:
[tex](a + b)^2 = a^2 + 2ab + b^2[/tex]
In this case, we have:
[tex]x^2 + 8x + (?)[/tex]
We can rewrite the second term of the trinomial as:
8x = 2*4*x
Then, using the above formula for the perfect square, we can say that:
b = 4
Then the missing term is:
[tex]4^2 = 16[/tex]
So the correct option is 16.
If you want to learn more about perfect squares:
https://brainly.com/question/1538726
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