Question

What's e=mc²? I need it for my math class

Answer 1

E represents units of energy, m represents units of mass, and c2 is the speed of light squared,

Explanation:

So energy = mass times speed squared

Answer 2

E = mc^2. It's the world's most famous equation, but what does it really mean? "Energy equals mass times the speed of light squared." On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing.

Explanation:

E = energy

m = mass

c = the speed of light