0=m^2-4

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Solution for 0=m^2-4 equation: 


Simplifying
0 = m2 + -4

Reorder the terms:
0 = -4 + m2

Solving
0 = -4 + m2

Solving for variable 'm'.

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

Add '-1m2' to each side of the equation.
0 + -1m2 = -4 + m2 + -1m2
Remove the zero:
-1m2 = -4 + m2 + -1m2

Combine like terms: m2 + -1m2 = 0
-1m2 = -4 + 0
-1m2 = -4

Divide each side by '-1'.
m2 = 4

Simplifying
m2 = 4

Take the square root of each side:
m = {-2, 2}

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