Precalculus Examples

$\frac{- 1 - j}{- 1 + 7 j}$

Step 1

Rewrite $- 1$ as $- 1 (1)$ .

$\frac{- 1 (1) - j}{- 1 + 7 j}$

Step 2

Factor $- 1$ out of $- j$ .

$\frac{- 1 (1) - (j)}{- 1 + 7 j}$

Step 3

Factor $- 1$ out of $- 1 (1) - (j)$ .

$\frac{- 1 (1 + j)}{- 1 + 7 j}$

Step 4

Rewrite $- 1$ as $- 1 (1)$ .

$\frac{- 1 (1 + j)}{- 1 (1) + 7 j}$

Step 5

Factor $- 1$ out of $7 j$ .

$\frac{- 1 (1 + j)}{- 1 (1) - (- 7 j)}$

Step 6

Factor $- 1$ out of $- 1 (1) - (- 7 j)$ .

$\frac{- 1 (1 + j)}{- 1 (1 - 7 j)}$

Step 7

Cancel the common factor.

$\frac{- 1 (1 + j)}{- 1 (1 - 7 j)}$

Step 8

Rewrite the expression.

$\frac{1 + j}{1 - 7 j}$

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