Precalculus Examples

$(8 - i) - (4 - i)$

Step 1

Simplify each term.

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Step 1.1

Apply the distributive property.

$8 - i - 1 \cdot 4 - - i$

Step 1.2

Multiply $- 1$ by $4$ .

$8 - i - 4 - - i$

Step 1.3

Multiply $- 1$ by $- 1$ .

$8 - i - 4 + 1 i$

Step 1.4

Multiply $i$ by $1$ .

$8 - i - 4 + i$

$8 - i - 4 + i$

Step 2

Simplify by adding terms.

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Step 2.1

Subtract $4$ from $8$ .

$4 - i + i$

Step 2.2

Add $- i$ and $i$ .

$4 + 0$

Step 2.3

Add $4$ and $0$ .

$4$

$4$

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