# Solve for m m^2=20 m2=20
Take the square root of both sides of the equation to eliminate the exponent on the left side.
m=±20
The complete solution is the result of both the positive and negative portions of the solution.
Simplify the right side of the equation.
Rewrite 20 as 22⋅5.
Factor 4 out of 20.
m=±4(5)
Rewrite 4 as 22.
m=±22⋅5
m=±22⋅5
Pull terms out from under the radical.
m=±25
m=±25
The complete solution is the result of both the positive and negative portions of the solution.
First, use the positive value of the ± to find the first solution.
m=25
Next, use the negative value of the ± to find the second solution.
m=-25
The complete solution is the result of both the positive and negative portions of the solution.
m=25,-25
m=25,-25
m=25,-25
The result can be shown in multiple forms.
Exact Form:
m=25,-25
Decimal Form:
m=4.47213595…,-4.47213595…
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