Solve Using the Square Root Property 121+81=x^2

Math
121+81=x2
Rewrite the equation as x2=121+81.
x2=121+81
Take the square root of both sides of the equation to eliminate the exponent on the left side.
x=±121+81
The complete solution is the result of both the positive and negative portions of the solution.
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Add 121 and 81.
x=±202
The complete solution is the result of both the positive and negative portions of the solution.
Tap for more steps…
First, use the positive value of the ± to find the first solution.
x=202
Next, use the negative value of the ± to find the second solution.
x=-202
The complete solution is the result of both the positive and negative portions of the solution.
x=202,-202
x=202,-202
x=202,-202
The result can be shown in multiple forms.
Exact Form:
x=202,-202
Decimal Form:
x=14.21267040…,-14.21267040…
Solve Using the Square Root Property 121+81=x^2

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