What is the minimum value of 5x^2 - 20x + 1357 - 80x + 415?
5x^2 - 20x + 1357 - 80x + 415 simplify
5x^2 -100x + 1772
The minimum value willl occur at x = 100 / ( 2 * 5) = 10
Put this value into the function and the minimum is
5 (10)^2 - 100 ( 10) + 1772 =
500 - 1000 + 1772 =
1272
