To translate the given statement into a quadratic equation, we can break down the components of the statement:
- "The product of negative six and a number squared" translates to \(-6x^2\).
- "The product of five and the same number" translates to \(5x\).
- "Is thirty-one" translates to \(= 31\).
Putting it all together, we get the equation:
\[ -6x^2 + 5x = 31 \]
Thus, the correct response is: −6x² + 5x = 31 (negative 6 x squared plus 5 x is equal to 31).