Solve Using the Quadratic Formula 2x+1

$2 x + 1$

Step 1

Set $2 x + 1$ equal to $0$ .

$2 x + 1 = 0$

Step 2

Subtract $1$ from both sides of the equation.

$2 x = - 1$

Step 3

Divide each term in $2 x = - 1$ by $2$ and simplify.

Divide each term in $2 x = - 1$ by $2$ .

$\frac{2 x}{2} = \frac{- 1}{2}$

Simplify the left side.

Cancel the common factor of $2$ .

Cancel the common factor.

$\frac{2 x}{2} = \frac{- 1}{2}$

Divide $x$ by $1$ .

$x = \frac{- 1}{2}$

Simplify the right side.

Move the negative in front of the fraction.

$x = - \frac{1}{2}$