Linear Algebra Examples

$(- 1) (2) + (1) (- 1)$

Step 1

Simplify each term.

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Step 1.1

Multiply $- 1$ by $2$ .

$- 2 + (1) (- 1)$

Step 1.2

Multiply $- 1$ by $1$ .

$- 2 - 1$

Step 2

Subtract $1$ from $- 2$ .

$- 3$