$$\text { Find the derivative of } y \text { with respect to } x , t , \text { or } \theta \text {, as appropriate. }$$
-$$y = 9 x e ^ { x } - 9 e ^ { x }$$
A) $9 e ^ { x }$
B) $9 x e ^ { x } + 18 e ^ { x }$
C) $9 x e ^ { x }$
D) $9 \mathrm { x }$

Question

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The Answer of $$\text { Find the derivative of } y \text { with respect to } x , t , \text { or } \theta \text {, as appropriate. }$$
-$$y = 9 x e ^ { x } - 9 e ^ { x }$$
A) $9 e ^ { x }$
B) $9 x e ^ { x } + 18 e ^ { x }$
C) $9 x e ^ { x }$
D) $9 \mathrm { x }$

Find the derivative of y with respect to x,t, or θ, as appropriate. \text { Find the derivative of } y \text { with respect to } x , t , \text { or } \theta \text {, as appropriate. } Find the derivative of y with respect to x,t, or θ, as appropriate.

$\text { Find the derivative of } y \text { with respect to } x , t , \text { or } \theta \text {, as appropriate. }$