Here's a breakdown:

* c: This is the symbol for the speed of light in a vacuum, which is approximately 299,792,458 meters per second.

* ²: This is the mathematical symbol for squaring a number. It means multiplying the number by itself.

Therefore, c² is approximately equal to 8.98755179 × 10¹⁶ m²/s².

This value is particularly important in the famous equation E=mc², formulated by Albert Einstein. In this equation:

* E: Represents energy

* m: Represents mass

This equation implies that mass and energy are equivalent, meaning they can be converted into one another. The constant c² serves as the conversion factor between mass and energy.

So, c² is a fundamental constant in physics, playing a crucial role in understanding the relationship between energy, mass, and the speed of light.