Question

I need to make c square into c but how do I divide 80 by the square?

Answer 1

You don't "divide by the square" - c ² means you are multiplying c by c.

To solve for c in this equation, you would have to do the opposite of taking a square, which in this case means taking the square root of both sides.

c ² = 80

==> √(c ²) = √80

==> |c| = √80

Then c = +√80 or c = -√80.