x3 dydx 3x2y x y2 0Solutionx3dydx 3x2yx x3dy 3x2ydxxdx di

x^3 dy/dx + 3x^2y = x y(2) = 0

Solution

x3dy/dx +3x2y=x

x3dy +3x2ydx=xdx

divide by x3 on both sides

(x3/x3)dy+3(x2/x3)ydx=(x/x3)dx

dy+(3/x)ydx=(1/x2)dx

integrating factor =e(3/x)dx

integrating factor =e(3lnx)

integrating factor =e(lnx^3)

integrating factor =x3

multiply on both sides by x3

x3dy+(3/x)x3ydx=x3(1/x2)dx

dyx3+y3x2dx=xdx

product rule:u\'v +uv\' =(uv)\'

(yx3)\'=xdx

integrate on both sides

(yx3)\'= xdx

yx3=(1/2)x2 +c

given y(2)=0

0*23=(1/2)22 +c

0=2+c

c=-2

yx3=(1/2)x2 -2

y=(1/2)(x2/x3) +(c/x3)

y=(1/(2x))+(c/x3) is the solution

 x^3 dy/dx + 3x^2y = x y(2) = 0Solutionx3dy/dx +3x2y=x x3dy +3x2ydx=xdx divide by x3 on both sides (x3/x3)dy+3(x2/x3)ydx=(x/x3)dx dy+(3/x)ydx=(1/x2)dx integrati

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