What is the answer to (-x^3+40x)/(x^2-7)=2x ?

The answer to (-x^3+40x)/(x^2-7)=2x is x=0,x=-3sqrt(2),x=3sqrt(2)

Solve for x: (-x^3+40x)/(x^2-7)=2x

The solution is x=0,x=-3sqrt(2),x=3sqrt(2)

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Popular >

\frac{- x ^{3} + 40 x}{x ^{2} - 7} = 2 x

x = 0, x = - 32, x = 32

Decimal Notation

x = 0, x = - 4.24264 \dots, x = 4.24264 \dots

Solution steps

\frac{- x ^{3} + 40 x}{x ^{2} - 7} = 2 x

Multiply both sides by

x^{2} - 7

- x^{3} + 40 x = 2 x (x^{2} - 7)

Solve

- x^{3} + 40 x = 2 x (x^{2} - 7) : x = 0, x = - 32, x = 32

x = 0, x = - 32, x = 32

Verify Solutions

Find undefined (singularity) points:

x = 7, x = - 7

Combine undefined points with solutions:

x = 0, x = - 32, x = 32

(m + 2) (\frac{1}{m} + 2) = 10

\frac{2}{8} = \frac{1}{x}

x, f = \frac{4}{x + 2}

65 = \frac{4.23}{0.13 - x}

\frac{7}{3 x - 2} = \frac{21}{30}

What is the answer to (-x^3+40x)/(x^2-7)=2x ?
The answer to (-x^3+40x)/(x^2-7)=2x is x=0,x=-3sqrt(2),x=3sqrt(2)
Solve for x: (-x^3+40x)/(x^2-7)=2x
The solution is x=0,x=-3sqrt(2),x=3sqrt(2)