m2=20

Take the square root of both sides of the equation to eliminate the exponent on the left side.

m=±20

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…

Solve for m m^2=20