Try another version of this question Find the domain of the following function: Domain:
Use interval notation to express your answer. Get help: Box 1: Enter your answer using interval notation. Example: [2,5)
Think about what kinds of `x`-values you can input into this quadratic function.
Use U for union to combine intervals. Example: (-oo,2] U [4,oo)
Enter each value as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for an empty set. Use oo to enter Infinity. `(-oo,oo)`