Use the Square Root Property to Solve the Equation $x ^ { 2 } + 81 = 0$

question 126

Multiple Choice

Use the square root property to solve the equation.
$x ^ { 2 } + 81 = 0$

• A) \(\{ 9 \}\)
• B) \(\{ - 9,9 \}\)
• C) \(\{ 6561 \}\)
• D) \(\{ - 9 i , 9 i \}\)

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