Solve 2x^24x - 5 =0

Evaluate

2 x^{2} \times 4 x - 5 = 0

Multiply

More Steps

8 x^{3} - 5 = 0

Move the constant to the right-hand side and change its sign

8 x^{3} = 0 + 5

Removing 0 doesn't change the value,so remove it from the expression

8 x^{3} = 5

Divide both sides

\frac{8 x ^{3}}{8} = \frac{5}{8}

Divide the numbers

x^{3} = \frac{5}{8}

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

3 x^{3} = 3 \frac{5}{8}

Calculate

x = 3 \frac{5}{8}

Solution

More Steps

x = \frac{3 5}{2}

Alternative Form

x \approx 0.854988

Solve the equation