Pre-Algebra Examples

(12 - 3 i) + (7 + 3 i)

$(12 - 3 i) + (7 + 3 i)$

Step 1

Simplify the expression.

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Step 1.1

Remove parentheses.

12 - 3 i + 7 + 3 i

$12 - 3 i + 7 + 3 i$

Step 1.2

Add

12

$12$ and

7

$7$ .

19 - 3 i + 3 i

$19 - 3 i + 3 i$

19 - 3 i + 3 i

$19 - 3 i + 3 i$

Step 2

Add

- 3 i

$- 3 i$ and

3 i

$3 i$ .

19 + 0

$19 + 0$

Step 3

Add

19

$19$ and

0

$0$ .

19

$19$

⎡ ⎢ ⎣ \begin{matrix} x^{2} & \frac{1}{2} \sqrt{π} & \int x d x \end{matrix} ⎤ ⎥ ⎦

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