Solve
- $$x ^ { 3 } + 343 = 0$$

question 159

Multiple Choice

Solve.
- $$x ^ { 3 } + 343 = 0$$

• A) \(\left\{ 7 , \frac { - 7 - 7 i \sqrt { 3 } } { 2 } , \frac { - 7 + 7 i \sqrt { 3 } } { 2 } \right\}\)
• B) \(\left\{ 7 , \frac { - 7 - 7 \sqrt { 5 } } { 2 } , \frac { - 7 + 7 \sqrt { 5 } } { 2 } \right\}\)
• C) \(\left\{ - 7 , \frac { 7 - 7 i \sqrt { 3 } } { 2 } , \frac { 7 + 7 i \sqrt { 3 } } { 2 } \right\}\)
• D) \(\left\{ - 7 , \frac { - 7 - 7 i \sqrt { 3 } } { 2 } , \frac { - 7 + 7 i \sqrt { 3 } } { 2 } \right\}\)

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