7c^2-49=0

Solution for 7c^2-49=0 equation:

Simplifying
7c2 + -49 = 0

Reorder the terms:
-49 + 7c2 = 0

Solving
-49 + 7c2 = 0

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Add '49' to each side of the equation.
-49 + 49 + 7c2 = 0 + 49

Combine like terms: -49 + 49 = 0
0 + 7c2 = 0 + 49
7c2 = 0 + 49

Combine like terms: 0 + 49 = 49
7c2 = 49

Divide each side by '7'.
c2 = 7

Simplifying
c2 = 7

Take the square root of each side:
c = {-2.645751311, 2.645751311}