Hi!
The answer is C. It is a numerical expression because it contains only numbers and operation symbols.
Answer:
<h2>
x₁ = - 2 + √2 , x₂ = - 2 - √2</h2>
Step-by-step explanation:

Answer:
Segment addition postulate
Step-by-step explanation:
According to the segment addition postulate, given a line segment defined as AC then a point B is located along AC if and only if the length of the segments on the line satisfy the relation, AC = AB + BC. Therefore, whereby a line which is defined by two end points, is seen to be the sum of points between the two end points.