Evaluate -(-1)^2+(-1)

$- {(- 1)}^{2} + (- 1)$

Step 1

Remove parentheses.

$- {(- 1)}^{2} - 1$

Step 2

Simplify each term.

Multiply $- 1$ by ${(- 1)}^{2}$ by adding the exponents.

Multiply $- 1$ by ${(- 1)}^{2}$ .

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

${(- 1)}^{1} {(- 1)}^{2} - 1$

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

${(- 1)}^{1 + 2} - 1$

Add $1$ and $2$ .

${(- 1)}^{3} - 1$

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

$- 1 - 1$

Step 3

Subtract $1$ from $- 1$ .

$- 2$