Subtract $\sqrt { - 81 } - \sqrt { - 4 }$

question 97

Multiple Choice

Subtract $\sqrt { - 81 } - \sqrt { - 4 }$ and write in standard form.

• A) \(22 i\)
• B) \(11 i\)
• C) \(\sqrt { - 7 } i\)
• D) \(7 i\)
• E) \(- 7 i\)

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