What is the extreme f(x)=(x-1)^2(x+2)^2 ?

The extreme f(x)=(x-1)^2(x+2)^2 is Minimum(-2,0),Maximum(-1/2 , 81/16),Minimum(1,0)

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extreme f(x)=(x-1)^2(x+2)^2

extreme

Minimum (- 2, 0), Maximum (- \frac{1}{2}, \frac{81}{16}), Minimum (1, 0)

Solution steps

f^{'} (x) = 2 (x - 1) (x + 2) (2 x + 1)

Find intervals:

Decreasing

: - \infty < x < - 2,

Increasing

: - 2 < x < - \frac{1}{2},

Decreasing

: - \frac{1}{2} < x < 1,

Increasing

: 1 < x < \infty

Plug

x = - 2

into

(x - 1)^{2} (x + 2)^{2} : 0

Minimum (- 2, 0)

Plug

x = - \frac{1}{2}

into

(x - 1)^{2} (x + 2)^{2} : \frac{81}{16}

Maximum (- \frac{1}{2}, \frac{81}{16})

Plug

x = 1

into

(x - 1)^{2} (x + 2)^{2} : 0

Minimum (1, 0)

Minimum (- 2, 0), Maximum (- \frac{1}{2}, \frac{81}{16}), Minimum (1, 0)

What is the extreme f(x)=(x-1)^2(x+2)^2 ?
The extreme f(x)=(x-1)^2(x+2)^2 is Minimum(-2,0),Maximum(-1/2 , 81/16),Minimum(1,0)