Finite Math Examples

$[\begin{array}{c} 1 & - 2 & 3 & 2 \\ 0 & 1 & 2 & 1 \\ 0 & 0 & 0 & 0 \end{array}] \cdot 3$

Step 1

Move $3$ to the left of $[\begin{array}{c} 1 & - 2 & 3 & 2 \\ 0 & 1 & 2 & 1 \\ 0 & 0 & 0 & 0 \end{array}]$ .

$3 \cdot [\begin{array}{c} 1 & - 2 & 3 & 2 \\ 0 & 1 & 2 & 1 \\ 0 & 0 & 0 & 0 \end{array}]$

Step 2

Multiply $3$ by each element of the matrix.

$[\begin{array}{c} 3 \cdot 1 & 3 \cdot - 2 & 3 \cdot 3 & 3 \cdot 2 \\ 3 \cdot 0 & 3 \cdot 1 & 3 \cdot 2 & 3 \cdot 1 \\ 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 \end{array}]$

Step 3

Simplify each element in the matrix.

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Step 3.1

Multiply $3$ by $1$ .

$[\begin{array}{c} 3 & 3 \cdot - 2 & 3 \cdot 3 & 3 \cdot 2 \\ 3 \cdot 0 & 3 \cdot 1 & 3 \cdot 2 & 3 \cdot 1 \\ 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 \end{array}]$

Step 3.2

Multiply $3$ by $- 2$ .

$[\begin{array}{c} 3 & - 6 & 3 \cdot 3 & 3 \cdot 2 \\ 3 \cdot 0 & 3 \cdot 1 & 3 \cdot 2 & 3 \cdot 1 \\ 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 \end{array}]$

Step 3.3

Multiply $3$ by $3$ .

$[\begin{array}{c} 3 & - 6 & 9 & 3 \cdot 2 \\ 3 \cdot 0 & 3 \cdot 1 & 3 \cdot 2 & 3 \cdot 1 \\ 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 \end{array}]$

Step 3.4

Multiply $3$ by $2$ .

$[\begin{array}{c} 3 & - 6 & 9 & 6 \\ 3 \cdot 0 & 3 \cdot 1 & 3 \cdot 2 & 3 \cdot 1 \\ 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 \end{array}]$

Step 3.5

Multiply $3$ by $0$ .

$[\begin{array}{c} 3 & - 6 & 9 & 6 \\ 0 & 3 \cdot 1 & 3 \cdot 2 & 3 \cdot 1 \\ 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 \end{array}]$

Step 3.6

Multiply $3$ by $1$ .

$[\begin{array}{c} 3 & - 6 & 9 & 6 \\ 0 & 3 & 3 \cdot 2 & 3 \cdot 1 \\ 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 \end{array}]$

Step 3.7

Multiply $3$ by $2$ .

$[\begin{array}{c} 3 & - 6 & 9 & 6 \\ 0 & 3 & 6 & 3 \cdot 1 \\ 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 \end{array}]$

Step 3.8

Multiply $3$ by $1$ .

$[\begin{array}{c} 3 & - 6 & 9 & 6 \\ 0 & 3 & 6 & 3 \\ 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 \end{array}]$

Step 3.9

Multiply $3$ by $0$ .

$[\begin{array}{c} 3 & - 6 & 9 & 6 \\ 0 & 3 & 6 & 3 \\ 0 & 3 \cdot 0 & 3 \cdot 0 & 3 \cdot 0 \end{array}]$

Step 3.10

Multiply $3$ by $0$ .

$[\begin{array}{c} 3 & - 6 & 9 & 6 \\ 0 & 3 & 6 & 3 \\ 0 & 0 & 3 \cdot 0 & 3 \cdot 0 \end{array}]$

Step 3.11

Multiply $3$ by $0$ .

$[\begin{array}{c} 3 & - 6 & 9 & 6 \\ 0 & 3 & 6 & 3 \\ 0 & 0 & 0 & 3 \cdot 0 \end{array}]$

Step 3.12

Multiply $3$ by $0$ .

$[\begin{array}{c} 3 & - 6 & 9 & 6 \\ 0 & 3 & 6 & 3 \\ 0 & 0 & 0 & 0 \end{array}]$