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Popular >

extreme (2-7x)^3

Solution

extreme points

(2 - 7 x)^{3}

Solution

Saddle (\frac{2}{7}, 0)

Solution steps

f^{'} (x) = - 21 (2 - 7 x)^{2}

Find intervals:

Decreasing

: - \infty < x < \frac{2}{7},

Decreasing

: \frac{2}{7} < x < \infty

Plug

x = \frac{2}{7}

into

(2 - 7 x)^{3} : 0

Saddle (\frac{2}{7}, 0)

Popular Examples

intercepts of f(x)=(x+2)(x-8)intercepts

f (x) = (x + 2) (x - 8)

inverse of (x-1)^2+2 inverse

(x - 1)^{2} + 2

domain of f(x)=sqrt((x^5-32)/(x-3))domain

f (x) = \frac{x ^{5} - 32}{x - 3}

domain of f(x)=x^2+6x-7 domain

f (x) = x^{2} + 6 x - 7

domain of sqrt(4x+20)domain

4 x + 20

Frequently Asked Questions (FAQ)

What is the extreme (2-7x)^3 ?
The extreme (2-7x)^3 is Saddle(2/7 ,0)