What is the answer to x= 4/x ?

The answer to x= 4/x is x=2,x=-2

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x= 4/x

x = \frac{4}{x}

x = 2, x = - 2

Solution steps

x = \frac{4}{x}

Multiply both sides by

x

x^{2} = 4

Solve

x^{2} = 4 : x = 2, x = - 2

x = 2, x = - 2

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 2, x = - 2

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

x = \frac{4 x ^{3} - 8 x + 2}{8 x + 4}

\frac{x}{16} = \frac{36}{x}

x + \frac{8}{x} = \frac{4 x - 5}{3}

\frac{( 100 P - 4000 )}{100 P} = 0.3