121=4m^2

Solution for 121=4m^2 equation:

Simplifying
121 = 4m2

Solving
121 = 4m2

Solving for variable 'm'.

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

Add '-4m2' to each side of the equation.
121 + -4m2 = 4m2 + -4m2

Combine like terms: 4m2 + -4m2 = 0
121 + -4m2 = 0

Add '-121' to each side of the equation.
121 + -121 + -4m2 = 0 + -121

Combine like terms: 121 + -121 = 0
0 + -4m2 = 0 + -121
-4m2 = 0 + -121

Combine like terms: 0 + -121 = -121
-4m2 = -121

Divide each side by '-4'.
m2 = 30.25

Simplifying
m2 = 30.25

Take the square root of each side:
m = {-5.5, 5.5}