Two negative integers are 8 units apart on the number line and have a product of 308. Which equation could be used to determine x , the smaller negative integer?

Let x be the smaller negative integer. Since the integers are 8 units apart, the other integer is x + 8. Their product is 308, so x(x + 8) = 308; expanding and moving 308 to the left gives x² + 8x − 308 = 0. This is choice D.

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