122=2⋅L

Rewrite the equation as 2⋅L=122.

2⋅L=122

Divide each term in 2⋅L=122 by 2.

2⋅L2=1222

Cancel the common factor of 2.

Cancel the common factor.

2⋅L2=1222

Divide L by 1.

L=1222

L=1222

Simplify 1222.

Raise 12 to the power of 2.

L=1442

Divide 144 by 2.

L=72

L=72

L=72

To remove the radical on the left side of the equation, square both sides of the equation.

L2=722

Multiply the exponents in (L12)2.

Apply the power rule and multiply exponents, (am)n=amn.

L12⋅2=722

Cancel the common factor of 2.

Cancel the common factor.

L12⋅2=722

Rewrite the expression.

L1=722

L1=722

L1=722

Simplify.

L=722

Raise 72 to the power of 2.

L=5184

L=5184

Solve for L 12^2=2* square root of L