What is the inverse of f(x)=x^2+4x-21 ?

The inverse of f(x)=x^2+4x-21 is -2+sqrt(x+25),-sqrt(x+25)-2

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

inverse of f(x)=x^2+4x-21

inverse

f (x) = x^{2} + 4 x - 21

- 2 + x + 25, - x + 25 - 2

Solution steps

y = x^{2} + 4 x - 21

Replace

x

with

y

x = y^{2} + 4 y - 21

Solve for

y, x = y^{2} + 4 y - 21

- 2 + x + 25, - x + 25 - 2

f (x) = \frac{x - 4}{2 x + 5}

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

f (x) = - 7 x + 4

f (x) = 5 + 2 x - 6

f (x) = 10 ln (40 t - 1200)

What is the inverse of f(x)=x^2+4x-21 ?
The inverse of f(x)=x^2+4x-21 is -2+sqrt(x+25),-sqrt(x+25)-2