Can someone check a couple of these? (1 Viewer)

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Are these the correct answers for the following questions?

1 Solve the Bernoulli equation.

a) [tex]x\frac{dy}{dx}+67=3xy^\frac{4}{3}[/tex]

What I got:

b) [tex]x^2y'+2xy=5y^4[/tex]

What I got:

2 Solve each differential equation.

a) [tex]xy''+2y'=6x[/tex]

What I got:
I let u=y', y''=du/dx

b) [tex]y^3y''=1[/tex]

What I got:
I let u=y', y''=udu/dy
Last edited:

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