Move to the left side of the equation by subtracting it from both sides.

Move to the left side of the equation by subtracting it from both sides.

Apply the distributive property.

Move to the left of .

Rewrite as .

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation:

Set-Builder Notation:

Find the Domain f(k^2-1)=5x+7