Solve the differential equation.
-$x ^ { 2 } \frac { d y } { d x } = 9 y$
A) $y = C e ^ { - 9 x }$
B) $y = - \frac { 9 } { x } + C$
C) $\mathrm { y } = \mathrm { Ce } ^ { - 9 / \mathrm { x } }$
D) $y = C e ^ { 9 / x }$

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The Answer of Solve the differential equation.
-$x ^ { 2 } \frac { d y } { d x } = 9 y$
A) $y = C e ^ { - 9 x }$
B) $y = - \frac { 9 } { x } + C$
C) $\mathrm { y } = \mathrm { Ce } ^ { - 9 / \mathrm { x } }$
D) $y = C e ^ { 9 / x }$

Solve the Differential Equation x2dydx=9yx ^ { 2 } \frac { d y } { d x } = 9 yx2dxdy​=9y

Solve the Differential Equation $x ^ { 2 } \frac { d y } { d x } = 9 y$