Pré-cálculo Exemplos

$[\begin{array}{c} 8 & 9 & - 2 \\ 1 & 11 & - 1 \\ 2 & 12 & 3 \end{array}] - [\begin{array}{c} - 3 & 9 & 5 \\ 4 & 2 & - 2 \\ - 7 & - 1 & 4 \end{array}]$

Etapa 1

Subtraia os elementos correspondentes.

$[\begin{array}{c} 8 + 3 & 9 - 9 & - 2 - 5 \\ 1 - 4 & 11 - 2 & - 1 + 2 \\ 2 + 7 & 12 + 1 & 3 - 4 \end{array}]$

Etapa 2

Simplifique cada elemento.

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Etapa 2.1

Some $8$ e $3$ .

$[\begin{array}{c} 11 & 9 - 9 & - 2 - 5 \\ 1 - 4 & 11 - 2 & - 1 + 2 \\ 2 + 7 & 12 + 1 & 3 - 4 \end{array}]$

Etapa 2.2

Subtraia $9$ de $9$ .

$[\begin{array}{c} 11 & 0 & - 2 - 5 \\ 1 - 4 & 11 - 2 & - 1 + 2 \\ 2 + 7 & 12 + 1 & 3 - 4 \end{array}]$

Etapa 2.3

Subtraia $5$ de $- 2$ .

$[\begin{array}{c} 11 & 0 & - 7 \\ 1 - 4 & 11 - 2 & - 1 + 2 \\ 2 + 7 & 12 + 1 & 3 - 4 \end{array}]$

Etapa 2.4

Subtraia $4$ de $1$ .

$[\begin{array}{c} 11 & 0 & - 7 \\ - 3 & 11 - 2 & - 1 + 2 \\ 2 + 7 & 12 + 1 & 3 - 4 \end{array}]$

Etapa 2.5

Subtraia $2$ de $11$ .

$[\begin{array}{c} 11 & 0 & - 7 \\ - 3 & 9 & - 1 + 2 \\ 2 + 7 & 12 + 1 & 3 - 4 \end{array}]$

Etapa 2.6

Some $- 1$ e $2$ .

$[\begin{array}{c} 11 & 0 & - 7 \\ - 3 & 9 & 1 \\ 2 + 7 & 12 + 1 & 3 - 4 \end{array}]$

Etapa 2.7

Some $2$ e $7$ .

$[\begin{array}{c} 11 & 0 & - 7 \\ - 3 & 9 & 1 \\ 9 & 12 + 1 & 3 - 4 \end{array}]$

Etapa 2.8

Some $12$ e $1$ .

$[\begin{array}{c} 11 & 0 & - 7 \\ - 3 & 9 & 1 \\ 9 & 13 & 3 - 4 \end{array}]$

Etapa 2.9

Subtraia $4$ de $3$ .

$[\begin{array}{c} 11 & 0 & - 7 \\ - 3 & 9 & 1 \\ 9 & 13 & - 1 \end{array}]$