en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

inflection x^3-9x^2-81x

Solution

inflection points

x^{3} - 9 x^{2} - 81 x

Solution

(3, - 297)

Solution steps

f^{''} (x) = 6 x - 18

Find intervals:

Concave Downward

: - \infty < x < 3,

Concave Upward

: 3 < x < \infty

Plug

x = 3

into

x^{3} - 9 x^{2} - 81 x : - 297

(3, - 297)

Popular Examples

range of (3x^2+2x-1)/(6x^2-7x-3)range

\frac{3 x ^{2} + 2 x - 1}{6 x ^{2} - 7 x - 3}

slope ofintercept x+2y=4 slope intercept

x + 2 y = 4

range of 10-1/(5x)range

10 - \frac{1}{5 x}

range of f(x)=3x-5 range

f (x) = 3 x - 5

inverse of f(x)=-3x+11 inverse

f (x) = - 3 x + 11

Frequently Asked Questions (FAQ)

What is the inflection x^3-9x^2-81x ?
The inflection x^3-9x^2-81x is (3,-297)