Use the Quadratic Formula to Solve For $y$ In the Following Equation

Use the Quadratic Formula to solve for $y$ in the following equation.
$$36 x ^ { 2 } - 84 x y + 49 y ^ { 2 } - 70 x - 30 y = 0$$

A) $\frac { - 42 x - 15 \pm \sqrt { - 84 x + 3655 } } { 49 }$
B) $\frac { 2 ( 42 x + 15 ) \pm \sqrt { - 84 x + 14620 } } { 49 }$
C) $\frac { 42 x + 15 \pm \sqrt { 4690 x + 225 } } { 49 }$
D) $\frac { 84 x + 30 \pm \sqrt { - 42 x + 7085 } } { 98 }$
E) $\frac { - 84 x - 30 \pm \sqrt { - 42 x + 4330 } } { 98 }$