domain of f(x)=(2x-16)/(x^2-16x)
We save the definition: f(x) = 2x -16x2 -16x
Let's evaluate the domain of 2x -16x2 -16x
For the expression 2x -16x2 -16x to be defined, we must have: x2 -16x ≠ 0
You can factor: x2 -16x into: x·(x -16)
⇥Let's solve in ℝ: x ≠ 0
⇥Solution obtained: x ≠ 0
⇥Let's solve in ℝ: x -16 ≠ 0
⇥Solution found: x ≠ 16
▶Domain of definition:   x ∈ ℝ \ { 0, 16 }