x^2y+3xy-4y=0

Solution for x^2y+3xy-4y=0 equation:

Simplifying
x2y + 3xy + -4y = 0

Reorder the terms:
3xy + x2y + -4y = 0

Solving
3xy + x2y + -4y = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'y'.
y(3x + x2 + -4) = 0

Factor a trinomial.
y((x + -1)(x + 4)) = 0

Subproblem 1
Set the factor 'y' equal to zero and attempt to solve:

Simplifying
y = 0

Solving
y = 0

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

Add '-1y' to each side of the equation.
y + -1y = 0 + -1y
Remove the zero:
0 = -1y

Simplifying
0 = -1y

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 '(x + -1)' equal to zero and attempt to solve:

Simplifying
x + -1 = 0

Reorder the terms:
-1 + x = 0

Solving
-1 + x = 0

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

Add '1' to each side of the equation.
-1 + 1 + x = 0 + 1

Combine like terms: -1 + 1 = 0
0 + x = 0 + 1
x = 0 + 1

Combine like terms: 0 + 1 = 1
x = 1

Simplifying
x = 1
Subproblem 3
Set the factor '(x + 4)' equal to zero and attempt to solve:

Simplifying
x + 4 = 0

Reorder the terms:
4 + x = 0

Solving
4 + x = 0

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

Add '-4' to each side of the equation.
4 + -4 + x = 0 + -4

Combine like terms: 4 + -4 = 0
0 + x = 0 + -4
x = 0 + -4

Combine like terms: 0 + -4 = -4
x = -4

Simplifying
x = -4
Solution
x = {1, -4}