Can Algebra Alone Rearrange This Differential Equation?

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SUMMARY

The discussion centers on the rearrangement of the differential equation \(x^2 + \frac{dy}{dx} + xy = 1\). The original poster attempts to isolate \(\frac{dy}{dx}\) using algebra, suggesting \(\frac{dy}{dx} = \frac{x^2}{xy}\), which is incorrect. The community emphasizes the need for a solid understanding of algebraic manipulation before tackling differential equations, highlighting the importance of correctly applying algebraic principles in this context.

PREREQUISITES
  • Understanding of basic algebraic manipulation
  • Familiarity with differential equations
  • Knowledge of the notation for derivatives, specifically \(\frac{dy}{dx}\)
  • Ability to isolate variables in equations
NEXT STEPS
  • Review algebraic techniques for rearranging equations
  • Study the fundamentals of differential equations, focusing on first-order equations
  • Practice isolating derivatives in various types of equations
  • Explore online resources or textbooks on differential equations for beginners
USEFUL FOR

Students new to differential equations, educators teaching algebra and calculus, and anyone seeking to strengthen their mathematical foundation in solving differential equations.

whiskybrah
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I'm completely new to differential equations. I'm just doing random problems online about them. One simple problem asks to re-arrange the following so that the x's and y's are all on one side:

$$x^2 + dy/dx + xy = 1$$

Can I just use algebra to do it? Like:

$$ dy/dx = x^2/xy $$
 
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whiskybrah said:
I'm completely new to differential equations. I'm just doing random problems online about them. One simple problem asks to re-arrange the following so that the x's and y's are all on one side:

$$x^2 + dy/dx + xy = 1$$

Can I just use algebra to do it? Like:

$$ dy/dx = x^2/xy $$

Welcome to MHB!

Yes but maybe revisit algebra first. There are several mistakes here and it isn't clear what you've done. Mind expanding? :)
 

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