## Active forum topics

- Eliminate the Arbitrary Constants
- Law of cosines
- Maxima and minima (trapezoidal gutter)
- Special products and factoring
- Integration of 4x^2/csc^3x√sinxcosx dx
- application of minima and maxima
- Sight Distance of Vertical Parabolic Curve
- Application of Differential Equation: Newton's Law of Cooling
- Minima maxima: a²y = x⁴
- Trim and stability

## New forum topics

- Integration of 4x^2/csc^3x√sinxcosx dx
- Maxima and minima (trapezoidal gutter)
- Special products and factoring
- Newton's Law of Cooling
- Law of cosines
- Can you help me po to solve this?
- Eliminate the Arbitrary Constants
- Required diameter of solid shaft
- Differentiate trigonometric function
- Integration $\displaystyle \int \sec 2x ~ dx$

## Recent comments

- Mali po ang equation mo…2 days 17 hours ago
- $x$ is the location where…3 days 4 hours ago
- In double integration method…1 week ago
- Maayo, salamat sa imong…2 weeks 3 days ago
- 24 ft during the 10th second…2 weeks 3 days ago
- The differentiation you need…2 weeks 3 days ago
- Obtain the differential…2 weeks 3 days ago
- Thank you for sharing your…2 weeks 3 days ago
- Based on the differentiation…1 week ago
- Given that $x + y + xy = 1$,…1 week ago

## $(x^2 + y^2)\,dx + x(3x^2 -

$(x^2 + y^2)\,dx + x(3x^2 - 5y^2)\,dy = 0$

The variables are not separable

The equation is not homogeneous

Try:

$\dfrac{dx}{dy} + \dfrac{x(3x^2 - 5y^2)}{x^2 + y^2} = 0$

The equation is not linear.

Try:

$N = 3x^3 - 5xy^2$ → $\dfrac{\partial N}{\partial x} = 9x^2 - 5y^2$

The equation is not exact

Try:

$\dfrac{\dfrac{\partial M}{\partial y} - \dfrac{\partial N}{\partial x}}{N} = \dfrac{2y - 9x^2 + 5y^2}{3x^3 - 5xy^2}$

The equation does not have an integrating factor that is a function of x alone

Try:

$\dfrac{\dfrac{\partial M}{\partial y} - \dfrac{\partial N}{\partial x}}{N} = \dfrac{2y - 9x^2 + 5y^2}{x^2 + y^2}$

The equation does not have an integrating factor that is a function of y alone

Wala pa akong nakitang solution. Kung meron ka na, pease share.

## eto po yung answer:

In reply to $(x^2 + y^2)\,dx + x(3x^2 - by Jhun Vert

eto po yung answer:

2y^5 - 2x^2 ( y^3) + 3x = 0

## Are you sure your equation is

In reply to $(x^2 + y^2)\,dx + x(3x^2 - by Jhun Vert

Are you sure your equation is correct? And based on your answer key, there should be an initial condition because there is no constant c in your answer.

## The equation is wrong it

In reply to Are you sure your equation is by Jhun Vert

The equation is wrong it should be y(x^2+y^2)dx+x(3x^2-5y^2)dy=0, when x=2 , y=1