Solve for x x^2=81

Problem

x2=81

Solution

1. Identify the equation as a quadratic equation in the form x2=k

2. Apply the square root property by taking the square root of both sides of the equation.

3. Include both roots by adding a plus-minus sign ± to the constant side to account for both positive and negative solutions.

x=±√(,81)

4. Simplify the square root of 81 which is 9

x=±9

Final Answer

x=±9

Want more problems? Check here!