92+122=c2

Rewrite the equation as c2=92+122.

c2=92+122

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

c=±92+122

Simplify the right side of the equation.

Raise 9 to the power of 2.

c=±81+122

Raise 12 to the power of 2.

c=±81+144

Add 81 and 144.

c=±225

Rewrite 225 as 152.

c=±152

Pull terms out from under the radical, assuming positive real numbers.

c=±15

c=±15

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.

c=15

Next, use the negative value of the ± to find the second solution.

c=-15

The complete solution is the result of both the positive and negative portions of the solution.

c=15,-15

c=15,-15

c=15,-15

Solve for c 9^2+12^2=c^2