Precalculus Examples

$f (x) = 7 {(- 1)}^{3} + 2 {(- 1)}^{2} - 7 \cdot - 1 + 7$

Step 1

Raise $- 1$ to the power of $3$ .

$f (x) = 7 \cdot - 1 + 2 {(- 1)}^{2} - 7 \cdot - 1 + 7$

Step 2

Multiply $7$ by $- 1$ .

$f (x) = - 7 + 2 {(- 1)}^{2} - 7 \cdot - 1 + 7$

Step 3

Raise $- 1$ to the power of $2$ .

$f (x) = - 7 + 2 \cdot 1 - 7 \cdot - 1 + 7$

Step 4

Multiply $2$ by $1$ .

$f (x) = - 7 + 2 - 7 \cdot - 1 + 7$

Step 5

Multiply $- 7$ by $- 1$ .

$f (x) = - 7 + 2 + 7 + 7$

Step 6

Add $- 7$ and $2$ .

$f (x) = - 5 + 7 + 7$

Step 7

Add $- 5$ and $7$ .

$f (x) = 2 + 7$

Step 8

Add $2$ and $7$ .

$f (x) = 9$