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

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


Simplifying
20x2 + -1xy + -1y2 = 0

Reorder the terms:
-1xy + 20x2 + -1y2 = 0

Solving
-1xy + 20x2 + -1y2 = 0

Solving for variable 'x'.

Factor a trinomial.
(4x + -1y)(5x + y) = 0


Subproblem 1
Set the factor '(4x + -1y)' equal to zero and attempt to solve:

Simplifying
4x + -1y = 0

Solving
4x + -1y = 0

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

Add 'y' to each side of the equation.
4x + -1y + y = 0 + y

Combine like terms: -1y + y = 0
4x + 0 = 0 + y
4x = 0 + y
Remove the zero:
4x = y

Divide each side by '4'.
x = 0.25y

Simplifying
x = 0.25y

Subproblem 2
Set the factor '(5x + y)' equal to zero and attempt to solve:

Simplifying
5x + y = 0

Solving
5x + y = 0

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

Add '-1y' to each side of the equation.
5x + y + -1y = 0 + -1y

Combine like terms: y + -1y = 0
5x + 0 = 0 + -1y
5x = 0 + -1y
Remove the zero:
5x = -1y

Divide each side by '5'.
x = -0.2y

Simplifying
x = -0.2y
Solution
x = {0.25y, -0.2y}

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