Precalculus Examples

$(3 + 7 i) - (2 + 5 i)$

Step 1

Simplify each term.

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Step 1.1

Apply the distributive property.

$3 + 7 i - 1 \cdot 2 - (5 i)$

Step 1.2

Multiply $- 1$ by $2$ .

$3 + 7 i - 2 - (5 i)$

Step 1.3

Multiply $5$ by $- 1$ .

$3 + 7 i - 2 - 5 i$

$3 + 7 i - 2 - 5 i$

Step 2

Simplify by adding terms.

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Step 2.1

Subtract $2$ from $3$ .

$1 + 7 i - 5 i$

Step 2.2

Subtract $5 i$ from $7 i$ .

$1 + 2 i$

$1 + 2 i$

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