range of-x^2-5 — step-by-step solution

Let's find the real values taken by

- x^{2} - 5

, for real

x

⇥

- 0^{2} - 5

⇥

-5

The vertex is at

x

0

, with value

-5

The square coefficient is negative: this value is the maximum, and the function is unbounded below

▶Range:

(-∞, -5]