Solve the System by the Method of Substitution $$\left\{ \begin{array} { l } y = x ^ { 3 } - 6 x ^ { 2 } + 4 \\y = x ^ { 2 } - 10 x + 4\end{array} \right.$$

Multiple Choice

Solve the system by the method of substitution.​ $$\left\{ \begin{array} { l } y = x ^ { 3 } - 6 x ^ { 2 } + 4 \\y = x ^ { 2 } - 10 x + 4\end{array} \right.$$ ​

A) (2,-12) , (1,-5)
B) (5,-21) , (2,-12) , (0,4)
C) (5,-21) , (-1,15)
D) No real solution
E) (5,-21) , (-2,28) , (1,-5)