$\text { Use } u ( x , y ) = x ^ { 3 } y \text { as a integrating factor to find the general solution of the }$ differential equation $\left( 4 y ^ { 3 } + 7 x ^ { 3 } y \right) d x + \left( 4 x y ^ { 2 } + 2 x ^ { 4 } \right) d y = 0$
A) $x ^ { 5 } y ^ { 3 } + x ^ { 8 } y ^ { 3 } = C$
B) $x ^ { 4 } y ^ { 4 } + x ^ { 7 } y ^ { 3 } = C$
C) $x ^ { 4 } y ^ { 4 } + x ^ { 7 } y ^ { 2 } = C$
D) $x ^ { 5 } y ^ { 3 } + x ^ { 8 } y ^ { 2 } = C$
E) $x ^ { 3 } y ^ { 6 } + x ^ { 9 } y ^ { 2 } = C$

Question

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The Answer of $\text { Use } u ( x , y ) = x ^ { 3 } y \text { as a integrating factor to find the general solution of the }$ differential equation $\left( 4 y ^ { 3 } + 7 x ^ { 3 } y \right) d x + \left( 4 x y ^ { 2 } + 2 x ^ { 4 } \right) d y = 0$
A) $x ^ { 5 } y ^ { 3 } + x ^ { 8 } y ^ { 3 } = C$
B) $x ^ { 4 } y ^ { 4 } + x ^ { 7 } y ^ { 3 } = C$
C) $x ^ { 4 } y ^ { 4 } + x ^ { 7 } y ^ { 2 } = C$
D) $x ^ { 5 } y ^ { 3 } + x ^ { 8 } y ^ { 2 } = C$
E) $x ^ { 3 } y ^ { 6 } + x ^ { 9 } y ^ { 2 } = C$

Use u(x,y)=x3y as a integrating factor to find the general solution of the \text { Use } u ( x , y ) = x ^ { 3 } y \text { as a integrating factor to find the general solution of the } Use u(x,y)=x3y as a integrating factor to find the general solution of the

$\text { Use } u ( x , y ) = x ^ { 3 } y \text { as a integrating factor to find the general solution of the }$