Question

f(x)=x^3−4x^2+14
(A) List the x values of all local maxima of f.
x values of local maximums =

(B) List the x values of all local minima of f.
x values of local minimums =

Answer 1

x is a maximum/minimum if f'(x) = 0 ; 3x^2 - 8x = 0 and
f''(x) < 0 ; 6x - 8 < 0 --> maximum
f''(x) > 0 ; 6x - 8 > 0 --> minimum

Find the values of x which satisfy both.

@91004775

Answer 2

oh ok thanks