What is x2 – 6 = 16x + 30 rewritten in standard form, then factored? | What value(s) of x make the equation true?

Move all terms to one side: x² − 6 = 16x + 30 becomes x² − 16x − 36 = 0. Factor to get (x − 18)(x + 2) = 0, so x = 18 or x = −2. Choice D gives these two values.

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