21x^2-40xy+11y^2=0

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Solution for 21x^2-40xy+11y^2=0 equation: 


Simplifying
21x2 + -40xy + 11y2 = 0

Reorder the terms:
-40xy + 21x2 + 11y2 = 0

Solving
-40xy + 21x2 + 11y2 = 0

Solving for variable 'x'.

Factor a trinomial.
(7x + -11y)(3x + -1y) = 0


Subproblem 1
Set the factor '(7x + -11y)' equal to zero and attempt to solve:

Simplifying
7x + -11y = 0

Solving
7x + -11y = 0

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

Add '11y' to each side of the equation.
7x + -11y + 11y = 0 + 11y

Combine like terms: -11y + 11y = 0
7x + 0 = 0 + 11y
7x = 0 + 11y
Remove the zero:
7x = 11y

Divide each side by '7'.
x = 1.571428571y

Simplifying
x = 1.571428571y

Subproblem 2
Set the factor '(3x + -1y)' equal to zero and attempt to solve:

Simplifying
3x + -1y = 0

Solving
3x + -1y = 0

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

Add 'y' to each side of the equation.
3x + -1y + y = 0 + y

Combine like terms: -1y + y = 0
3x + 0 = 0 + y
3x = 0 + y
Remove the zero:
3x = y

Divide each side by '3'.
x = 0.3333333333y

Simplifying
x = 0.3333333333y
Solution
x = {1.571428571y, 0.3333333333y}

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