Solve by Factoring 1/(n^2)+1/n=1/(2n^2)

$\frac{1}{n^{2}} + \frac{1}{n} = \frac{1}{2 n^{2}}$

Step 1

Subtract $\frac{1}{2 n^{2}}$ from both sides of the equation.

$\frac{1}{n^{2}} + \frac{1}{n} - \frac{1}{2 n^{2}} = 0$

Step 2

Simplify $\frac{1}{n^{2}} + \frac{1}{n} - \frac{1}{2 n^{2}}$ .

To write $\frac{1}{n^{2}}$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$\frac{1}{n} + \frac{1}{n^{2}} \cdot \frac{2}{2} - \frac{1}{2 n^{2}} = 0$

Write each expression with a common denominator of $2 n^{2}$ , by multiplying each by an appropriate factor of $1$ .

Multiply $\frac{1}{n^{2}}$ by $\frac{2}{2}$ .

$\frac{1}{n} + \frac{2}{n^{2} \cdot 2} - \frac{1}{2 n^{2}} = 0$

Move $2$ to the left of $n^{2}$ .

$\frac{1}{n} + \frac{2}{2 n^{2}} - \frac{1}{2 n^{2}} = 0$

Combine the numerators over the common denominator.

$\frac{1}{n} + \frac{2 - 1}{2 n^{2}} = 0$

Subtract $1$ from $2$ .

$\frac{1}{n} + \frac{1}{2 n^{2}} = 0$

Step 3

To write $\frac{1}{n}$ as a fraction with a common denominator, multiply by $\frac{2 n}{2 n}$ .

$\frac{1}{n} \cdot \frac{2 n}{2 n} + \frac{1}{2 n^{2}} = 0$

Step 4

Write each expression with a common denominator of $2 n^{2}$ , by multiplying each by an appropriate factor of $1$ .

Multiply $\frac{1}{n}$ by $\frac{2 n}{2 n}$ .

$\frac{2 n}{n (2 n)} + \frac{1}{2 n^{2}} = 0$

Rewrite using the commutative property of multiplication.

$\frac{2 n}{2 n \cdot n} + \frac{1}{2 n^{2}} = 0$

Multiply $n$ by $n$ by adding the exponents.

Move $n$ .

$\frac{2 n}{2 (n \cdot n)} + \frac{1}{2 n^{2}} = 0$

Multiply $n$ by $n$ .

$\frac{2 n}{2 n^{2}} + \frac{1}{2 n^{2}} = 0$

Step 5

Combine the numerators over the common denominator.

$\frac{2 n + 1}{2 n^{2}} = 0$

Step 6

Set the numerator equal to zero.

$2 n + 1 = 0$

Step 7

Solve the equation for $n$ .

Subtract $1$ from both sides of the equation.

$2 n = - 1$

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

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

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

Simplify the left side.

Cancel the common factor of $2$ .

Cancel the common factor.

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

Divide $n$ by $1$ .

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

Simplify the right side.

Move the negative in front of the fraction.

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

Solve by Factoring 1/(n^2)+1/n=1/(2n^2)

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