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For what real values of a is x^2 + ax + 625 the square of a binomial? If you find more than one, then list the values separated by commas.

 Dec 7, 2021
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(x+25)2   = x^2  + 50 x   + 625

(x-25)2    = x^2   -50  x   +625

 Dec 7, 2021

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