3x^2-4xy-20y^2=0

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Solution for 3x^2-4xy-20y^2=0 equation: 


Simplifying
3x2 + -4xy + -20y2 = 0

Reorder the terms:
-4xy + 3x2 + -20y2 = 0

Solving
-4xy + 3x2 + -20y2 = 0

Solving for variable 'x'.

Factor a trinomial.
(3x + -10y)(x + 2y) = 0


Subproblem 1
Set the factor '(3x + -10y)' equal to zero and attempt to solve:

Simplifying
3x + -10y = 0

Solving
3x + -10y = 0

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

Add '10y' to each side of the equation.
3x + -10y + 10y = 0 + 10y

Combine like terms: -10y + 10y = 0
3x + 0 = 0 + 10y
3x = 0 + 10y
Remove the zero:
3x = 10y

Divide each side by '3'.
x = 3.333333333y

Simplifying
x = 3.333333333y

Subproblem 2
Set the factor '(x + 2y)' equal to zero and attempt to solve:

Simplifying
x + 2y = 0

Solving
x + 2y = 0

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

Add '-2y' to each side of the equation.
x + 2y + -2y = 0 + -2y

Combine like terms: 2y + -2y = 0
x + 0 = 0 + -2y
x = 0 + -2y
Remove the zero:
x = -2y

Simplifying
x = -2y
Solution
x = {3.333333333y, -2y}

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