Let's define the variable as \( x \), representing the number. According to the description, we need to express the equation based on the following components:
- The product of negative six and a number squared: This can be represented as \(-6x^2\).
- The product of five and the same number: This can be represented as \(5x\).
- Is thirty-one: This indicates that the equation is equal to 31.
Putting these components together, we achieve the equation:
\[ -6x^2 + 5x = 31 \]
To convert this into standard quadratic form, we need to set the equation to zero. To do this, we subtract 31 from both sides:
\[ -6x^2 + 5x - 31 = 0 \]
This is the quadratic equation equivalent to the given statement. If you prefer the quadratic equation in the standard form \( ax^2 + bx + c = 0 \), we can multiply through by -1 (to make the leading coefficient positive):
\[ 6x^2 - 5x + 31 = 0 \]
So the quadratic equation equivalent to the original statement is:
\[ -6x^2 + 5x - 31 = 0 \]
or
\[ 6x^2 - 5x + 31 = 0 \]
You can use either form as an equivalent quadratic equation.