What is the extreme f(x)=2x^4-16x^2+3 ?

The extreme f(x)=2x^4-16x^2+3 is Minimum(-2,-29),Maximum(0,3),Minimum(2,-29)

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extreme f(x)=2x^4-16x^2+3

extreme points

f (x) = 2 x^{4} - 16 x^{2} + 3

Minimum (- 2, - 29), Maximum (0, 3), Minimum (2, - 29)

Solution steps

f^{'} (x) = 8 x^{3} - 32 x

Find intervals:

Decreasing

: - \infty < x < - 2,

Increasing

: - 2 < x < 0,

Decreasing

: 0 < x < 2,

Increasing

: 2 < x < \infty

Plug

x = - 2

into

2 x^{4} - 16 x^{2} + 3 : - 29

Minimum (- 2, - 29)

Plug

x = 0

into

2 x^{4} - 16 x^{2} + 3 : 3

Maximum (0, 3)

Plug

x = 2

into

2 x^{4} - 16 x^{2} + 3 : - 29

Minimum (2, - 29)

Minimum (- 2, - 29), Maximum (0, 3), Minimum (2, - 29)

f (x) = \frac{2}{5} x^{5} - 7 x^{4} + 30 x^{3} - 27

f (x, y) = 6 x y - 2 x^{2} y - 3 x y^{2}

f (x, y) = \frac{1}{x y}

16 x y

f (x, y) = x^{2} + y^{2} - 2 x - 6 y + 14

What is the extreme f(x)=2x^4-16x^2+3 ?
The extreme f(x)=2x^4-16x^2+3 is Minimum(-2,-29),Maximum(0,3),Minimum(2,-29)