Question

Find the domain of the following rational function.
h(x)=x+7 / x^2-49

Answer 1

A fraction cannot have a denominator of zero. Therefore, all you have to do is solve the following equation:
\[x^2-49\neq0\]\[(x+7)(x-7)\neq0\]

Answer 2

\[x \neq 7 and x \neq -7\]

Answer 3

thanks

Answer 4

\[\{x\in\mathbb{R}:x\neq\pm7\}\]