Solve 7x^22x -2=0

Evaluate

7 x^{2} \times 2 x - 2 = 0

Multiply

More Steps

14 x^{3} - 2 = 0

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

14 x^{3} = 0 + 2

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

14 x^{3} = 2

Divide both sides

\frac{14 x ^{3}}{14} = \frac{2}{14}

Divide the numbers

x^{3} = \frac{2}{14}

Cancel out the common factor 2

x^{3} = \frac{1}{7}

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

3 x^{3} = 3 \frac{1}{7}

Calculate

x = 3 \frac{1}{7}

Solution

More Steps

x = \frac{3 49}{7}

Alternative Form

x \approx 0.522758

Solve the equation