Solve the System of Equations by Using the Addition Method $$\begin{array} { l } x ^ { 2 } - x y = - 3 \\2 x ^ { 2 } + 3 x y = 14\end{array}$$

Multiple Choice

Solve the system of equations by using the addition method.
- $$\begin{array} { l } x ^ { 2 } - x y = - 3 \\2 x ^ { 2 } + 3 x y = 14\end{array}$$

A) $\{ ( - 1 , - 4 ) , ( 1,4 ) \}$
B) $\{ ( 1,4 ) , ( 1 , - 4 ) , ( - 1,4 ) , ( - 1 , - 4 ) \}$
C) $\{ ( 1,4 ) , ( 1 , - 4 ) \}$
D) { }