Solve 216 = 4x^2 20x 16

Evaluate

216 = 4 x^{2} \times 20 x \times 16

Multiply

More Steps

216 = 1280 x^{3}

Swap the sides of the equation

1280 x^{3} = 216

Divide both sides

\frac{1280 x ^{3}}{1280} = \frac{216}{1280}

Divide the numbers

x^{3} = \frac{216}{1280}

Cancel out the common factor 8

x^{3} = \frac{27}{160}

Take the 3 -th root on both sides of the equation

3 x^{3} = 3 \frac{27}{160}

Calculate

x = 3 \frac{27}{160}

Solution

More Steps

x = \frac{3 3 50}{20}

Alternative Form

x \approx 0.552605

Solve the equation