Algebra Examples

$f (- 1) = 3 {(2)}^{- 1}$

Step 1

Move $- 1$ to the left of $f$ .

$- 1 f = 3 {(2)}^{- 1}$

Step 2

Rewrite $- 1 f$ as $- f$ .

$- f = 3 {(2)}^{- 1}$

Step 3

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$- f = 3 (\frac{1}{2})$

Step 4

Combine $3$ and $\frac{1}{2}$ .

$- f = \frac{3}{2}$

Step 5

The result can be shown in multiple forms.

Exact Form:

$- f = \frac{3}{2}$

Decimal Form:

$- f = 1.5$

Mixed Number Form:

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