Question

[-17, 10] U (10, ∞)How to solve

Answer 1

$\lbrack-17,∞)$

1) Let's make use of pair of number lines to find the union between those intervals:

2) Note that in the first line the point 10 is included, while in the second one is not so the answer is:

$\lbrack-17,\:∞)$