Question

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?

x2 + 8x – 308 = 0
x2 – 8x + 308 = 0
x2 + 8x + 308 = 0
x2 − 8x − 308 = 0

Answer 1

x(x + 8) = 308 → x^2 + 8x − 308 = 0.

So the correct choice is: x^2 + 8x − 308 = 0.