Hello,

I need a help here in this problem...

For f(x) = x^3 + 6x^2 - 15x + k, the absolute maximum and absolute minimum value on the interval [-10, 2] have the same absolute value. Find the value of K? ....

I know we need to find the first derivative and then set them equal to zero but then I am stuck getting some absolute maximum as (100+K) and absolute minimum as (-250+k)...and if they are equal...it just does not make any sense!

Please help!

Thanks a lot!