What is the answer to x-1/x =8 ?

The answer to x-1/x =8 is x=4+sqrt(17),x=4-sqrt(17)

Solve for x: x-1/x =8

The solution is x=4+sqrt(17),x=4-sqrt(17)

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

x = 4 + 17, x = 4 - 17

Decimal Notation

x = 8.12310 \dots, x = - 0.12310 \dots

Solution steps

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

Multiply both sides by

x

x^{2} - 1 = 8 x

Solve

x^{2} - 1 = 8 x : x = 4 + 17, x = 4 - 17

x = 4 + 17, x = 4 - 17

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 4 + 17, x = 4 - 17

\frac{1}{x} = \frac{6}{5 x}

\frac{3}{x} - \frac{5}{x - 1} = 4

\frac{x - 4}{x} = \frac{5}{7}

0.18 + x = ln ((1 - x)^{- 2})

\frac{x ^{2}}{3 - x} = 7

What is the answer to x-1/x =8 ?
The answer to x-1/x =8 is x=4+sqrt(17),x=4-sqrt(17)
Solve for x: x-1/x =8
The solution is x=4+sqrt(17),x=4-sqrt(17)