Insert Three Arithmetic Means Between $x ^ { 2 } - 2 x = 7$

question 16

Essay

Insert three arithmetic means between $x ^ { 2 } - 2 x = 7$ and $x = 1 \pm 2 \sqrt { 2 }$ .

---

Definitions:

Obstacle Course

A series of challenging physical barriers that an individual or team must navigate usually as a form of training or competitive sport.

Traffic Cones

Safety devices used to signal or demarcate areas on roads or construction sites, typically cone-shaped and brightly colored for visibility.

Instrument Decay

The phenomenon where measurement tools or instruments become less accurate over time due to usage, age or environmental conditions.

Human Observers

Individuals who watch and record behaviors or phenomena in research settings, often used for qualitative data collection.