Solve the Equation for the Unknown $x ^ { 2 } = 81$

question 73

Multiple Choice

Solve the equation for the unknown.
- $x ^ { 2 } = 81$

• A) \(x = 9\)
• B) \(x = \pm 9\)
• C) \(x = \frac { 81 } { 2 }\)
• D) \(x = \pm \frac { 81 } { 2 }\)

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