Practice Test 10

$\left( - \infty, 1 }\right) \cup \left(1, \infty \right)$

$\left( - \infty,-1\right) \cup \left( \frac{2}{3}, 1 \right) \cup \left( 1, \infty \right)$

$\left( - \infty, \frac{2}{3}\right) \cup \left( \frac{2}{3}, \infty \right)$

$\left( - \infty, \frac{2}{3}\right) \cup \left(1, \infty \right)$

$\left( - \infty, -1 }\right) \cup \left(1, \infty \right)$