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

The answer to x+1/x =8 is x=4+sqrt(15),x=4-sqrt(15)

Solve for x: x+1/x =8

The solution is x=4+sqrt(15),x=4-sqrt(15)

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Popular >

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

x = 4 + 15, x = 4 - 15

Decimal Notation

x = 7.87298 \dots, x = 0.12701 \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 + 15, x = 4 - 15

x = 4 + 15, x = 4 - 15

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 4 + 15, x = 4 - 15

x + \frac{1}{x} = 9

- \frac{2}{x} = 8

\frac{3}{2 x} = 3

\frac{5}{3} = \frac{8}{z}

v, D = \frac{m}{v}

What is the answer to x+1/x =8 ?
The answer to x+1/x =8 is x=4+sqrt(15),x=4-sqrt(15)
Solve for x: x+1/x =8
The solution is x=4+sqrt(15),x=4-sqrt(15)