if you have x squared x and then a blank what is tha value of that blank

x2+x+b what is b perfect square of a trinomial?

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  1. x^2 + x + b = (x+u)^2 = x^2 + 2 u x + u^2
    2 u = 1
    so u = 1/2
    and b = (1/2)(1/2) = 1/4
    so if it is
    x^2 + u + 1/4
    then it is a perfect square of
    (x + 1/2)

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