(x*y+lny)dx+(x*y+x*lnx)dy=0

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Solution for (x*y+lny)dx+(x*y+x*lnx)dy=0 equation:


Simplifying
(x * y + lny) * dx + (x * y + x * lnx) * dy = 0

Multiply x * y
(xy + lny) * dx + (x * y + x * lnx) * dy = 0

Reorder the terms:
(lny + xy) * dx + (x * y + x * lnx) * dy = 0

Reorder the terms for easier multiplication:
dx(lny + xy) + (x * y + x * lnx) * dy = 0
(lny * dx + xy * dx) + (x * y + x * lnx) * dy = 0
(dlnxy + dx2y) + (x * y + x * lnx) * dy = 0

Multiply x * y
dlnxy + dx2y + (xy + x * lnx) * dy = 0

Multiply x * lnx
dlnxy + dx2y + (xy + lnx2) * dy = 0

Reorder the terms:
dlnxy + dx2y + (lnx2 + xy) * dy = 0

Reorder the terms for easier multiplication:
dlnxy + dx2y + dy(lnx2 + xy) = 0
dlnxy + dx2y + (lnx2 * dy + xy * dy) = 0
dlnxy + dx2y + (dlnx2y + dxy2) = 0

Reorder the terms:
dlnxy + dlnx2y + dxy2 + dx2y = 0

Solving
dlnxy + dlnx2y + dxy2 + dx2y = 0

Solving for variable 'd'.

Move all terms containing d to the left, all other terms to the right.

Factor out the Greatest Common Factor (GCF), 'dxy'.
dxy(ln + lnx + y + x) = 0

Subproblem 1

Set the factor 'dxy' equal to zero and attempt to solve: Simplifying dxy = 0 Solving dxy = 0 Move all terms containing d to the left, all other terms to the right. Simplifying dxy = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(ln + lnx + y + x)' equal to zero and attempt to solve: Simplifying ln + lnx + y + x = 0 Reorder the terms: ln + lnx + x + y = 0 Solving ln + lnx + x + y = 0 Move all terms containing d to the left, all other terms to the right. Add '-1ln' to each side of the equation. ln + lnx + x + -1ln + y = 0 + -1ln Reorder the terms: ln + -1ln + lnx + x + y = 0 + -1ln Combine like terms: ln + -1ln = 0 0 + lnx + x + y = 0 + -1ln lnx + x + y = 0 + -1ln Remove the zero: lnx + x + y = -1ln Add '-1lnx' to each side of the equation. lnx + x + -1lnx + y = -1ln + -1lnx Reorder the terms: lnx + -1lnx + x + y = -1ln + -1lnx Combine like terms: lnx + -1lnx = 0 0 + x + y = -1ln + -1lnx x + y = -1ln + -1lnx Add '-1x' to each side of the equation. x + -1x + y = -1ln + -1lnx + -1x Combine like terms: x + -1x = 0 0 + y = -1ln + -1lnx + -1x y = -1ln + -1lnx + -1x Add '-1y' to each side of the equation. y + -1y = -1ln + -1lnx + -1x + -1y Combine like terms: y + -1y = 0 0 = -1ln + -1lnx + -1x + -1y Simplifying 0 = -1ln + -1lnx + -1x + -1y The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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