What is the answer to x^{-2}+2x^{-1}-3=0 ?

The answer to x^{-2}+2x^{-1}-3=0 is x=-1/3 ,x=1

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

x^{-2}+2x^{-1}-3=0

x^{- 2} + 2 x^{- 1} - 3 = 0

x = - \frac{1}{3}, x = 1

Solution steps

x^{- 2} + 2 x^{- 1} - 3 = 0

Refine

\frac{1}{x ^{2}} + \frac{2}{x} - 3 = 0

Multiply by LCM

1 + 2 x - 3 x^{2} = 0

Solve

1 + 2 x - 3 x^{2} = 0 : x = - \frac{1}{3}, x = 1

x = - \frac{1}{3}, x = 1

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = - \frac{1}{3}, x = 1

\frac{1}{x} = \frac{3}{x - 8}

7 = \frac{40}{z} - 1

\frac{x - 3}{3 - x} = 3

\frac{90}{p} - 2 = p - 1

\frac{4}{x} - 5 = \frac{5}{2 x}

What is the answer to x^{-2}+2x^{-1}-3=0 ?
The answer to x^{-2}+2x^{-1}-3=0 is x=-1/3 ,x=1
Solve for x: x^{-2}+2x^{-1}-3=0
The solution is x=-1/3 ,x=1