Linear Algebra Examples

$4 u^{2} + 4 u + 6 + (6 u^{2} - 4 u - 3) - (3 u^{2} + 7 u - 5)$

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