Linear Algebra Examples

${(x - 5)}^{2} + 3 {(x - 1)}^{2} - {(8 x + 1)}^{2}$

Step 1

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:

$(- \infty, \infty)$

Set-Builder Notation:

${x | x \in ℝ}$

Step 2