Solve $( x + 5 ) ^ { 2 } = 80$

question 39

Multiple Choice

Solve $( x + 5 ) ^ { 2 } = 80$ by square root property.

• A) \(\{ - 9 \sqrt { 5 } , - \sqrt { 5 } \}\)
• B) \(\{ - 5 + 4 \sqrt { 5 } \}\)
• C) \(\{ 5 \pm 4 \sqrt { 5 } \}\)
• D) \(\{ - 5 \pm 4 \sqrt { 5 } \}\)

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