f(x)= x^4 - 4x^3 - 8x^2 + 48x
f'(x)= 4 (x-2)(x+2)(x-3)
f''(x)= 4(3x^2 -6x- 4)
my problem is i am unable to get the concavity.
what would be my intervals?
Hello, Alioyo!
My problem is i am unable to get the concavity. .Why not?
What would be my intervals?
You're taking Calculus and you don't know how to solve a quadratic equation?
You have: .
Quadratic Formula: .
The intervals are: .