Precalculus Examples

$- 5 (3, 4) - 3 (7, - 8)$

Step 1

Multiply $- 5$ by $3$ .

$- 5 (- 15, 4) - 3 (7, - 8)$

Step 2

Multiply $- 5$ by $4$ .

$- 5 (- 15, - 20) - 3 (7, - 8)$

Step 3

Multiply $- 3$ by $7$ .

$- 5 (- 15, - 20) - 3 (- 21, - 8)$

Step 4

Multiply $- 3$ by $- 8$ .

$- 5 (- 15, - 20) - 3 (- 21, 24)$

Step 5

Combine each component of the vectors.

$(- 15 - (- 21), - 20 - (24))$

Step 6

Multiply $- 1$ by $- 21$ .

$(- 15 + 21, - 20 - (24))$

Step 7

Add $- 15$ and $21$ .

$(6, - 20 - (24))$

Step 8

Multiply $- 1$ by $24$ .

$(6, - 20 - 24)$

Step 9

Subtract $24$ from $- 20$ .

$(6, - 44)$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$