x^2+16x+?(adsbygoogle = window.adsbygoogle || []).push({});

That ? Can only be 64 so the polynomial can transform into (x+8)^2 where the position where in this case “8” is must be an integer.

What exactly are these kind of concepts called?

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# B What exactly is this concept called? -- Finding "?" in x^2+16x+? to get (x+8)^2

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