196r^2-100=

Solution for 196r^2-100= equation:

Simplifying
196r2 + -100 = 0

Reorder the terms:
-100 + 196r2 = 0

Solving
-100 + 196r2 = 0

Solving for variable 'r'.

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

Add '100' to each side of the equation.
-100 + 100 + 196r2 = 0 + 100

Combine like terms: -100 + 100 = 0
0 + 196r2 = 0 + 100
196r2 = 0 + 100

Combine like terms: 0 + 100 = 100
196r2 = 100

Divide each side by '196'.
r2 = 0.5102040816

Simplifying
r2 = 0.5102040816

Take the square root of each side:
r = {-0.714285714, 0.714285714}