Solve the System by the Substitution or Elimination Method $$\left( \begin{array} { l } y& = &- x ^ { 2 } &+ &6 \\x &+& y &= &7\end{array} \right)$$

question 157

Multiple Choice

Solve the system by the substitution or elimination method. $$\left( \begin{array} { l } y& = &- x ^ { 2 } &+ &6 \\x &+& y &= &7\end{array} \right)$$

• A) \(\left( \frac { 1 - i \sqrt { 3 } } { 2 } , \frac { 13 + i \sqrt { 3 } } { 2 } \right) , \left( \frac { 1 + i \sqrt { 3 } } { 2 } , \frac { 13 - i \sqrt { 3 } } { 2 } \right)\)
• B) \(\left( \frac { 1 + i \sqrt { 3 } } { 2 } , \frac { 13 + i \sqrt { 3 } } { 2 } \right) , \left( \frac { 1 - i \sqrt { 3 } } { 2 } , \frac { 13 - i \sqrt { 3 } } { 2 } \right)\)
• C) \(( 1 - i \sqrt { 3 } , 13 - i \sqrt { 3 } ) , ( 1 + i \sqrt { 3 } , 13 + i \sqrt { 3 } )\)
• D) \(( 1 + i \sqrt { 3 } , 13 - i \sqrt { 3 } ) , ( 1 - i \sqrt { 3 } , 13 + i \sqrt { 3 } )\)

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