Basic Math Examples

$(4 - 7 i) - (- 9 - 7 i) + (2 - 4 i)$

Step 1

Remove parentheses.

$(4 - 7 i) - (- 9 - 7 i) + 2 - 4 i$

Step 2

Simplify each term.

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Step 2.1

Apply the distributive property.

$4 - 7 i - - 9 - (- 7 i) + 2 - 4 i$

Step 2.2

Multiply $- 1$ by $- 9$ .

$4 - 7 i + 9 - (- 7 i) + 2 - 4 i$

Step 2.3

Multiply $- 7$ by $- 1$ .

$4 - 7 i + 9 + 7 i + 2 - 4 i$

$4 - 7 i + 9 + 7 i + 2 - 4 i$

Step 3

Simplify by adding terms.

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Step 3.1

Add $4$ and $9$ .

$13 - 7 i + 7 i + 2 - 4 i$

Step 3.2

Add $13$ and $2$ .

$15 - 7 i + 7 i - 4 i$

Step 3.3

Add $- 7 i$ and $7 i$ .

$15 + 0 - 4 i$

Step 3.4

Add $15$ and $0$ .

$15 - 4 i$

$15 - 4 i$

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