Question

“What is the minimum value of the function: x^2+24x-18? Show your work.”

Answer 1

-162

Explanation:

x²+24x-18=x²+24x+12²-12²-18=(x+12)²-162

(x+12)²≥0

(x+12)²-162≥-162

⇒ the minimum value of the function is -162