49x^4+140x^3y-21x^2y^2=0

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Solution for 49x^4+140x^3y-21x^2y^2=0 equation: 


Simplifying
49x4 + 140x3y + -21x2y2 = 0

Reorder the terms:
-21x2y2 + 140x3y + 49x4 = 0

Solving
-21x2y2 + 140x3y + 49x4 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '7x2'.
7x2(-3y2 + 20xy + 7x2) = 0

Factor a trinomial.
7x2((-3y + -1x)(y + -7x)) = 0

Ignore the factor 7.

Subproblem 1
Set the factor 'x2' equal to zero and attempt to solve:

Simplifying
x2 = 0

Solving
x2 = 0

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

Simplifying
x2 = 0

Take the square root of each side:
x = {0}

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

Simplifying
-3y + -1x = 0

Reorder the terms:
-1x + -3y = 0

Solving
-1x + -3y = 0

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

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

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

Divide each side by '-1'.
x = -3y

Simplifying
x = -3y

Subproblem 3
Set the factor '(y + -7x)' equal to zero and attempt to solve:

Simplifying
y + -7x = 0

Reorder the terms:
-7x + y = 0

Solving
-7x + y = 0

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

Add '-1y' to each side of the equation.
-7x + y + -1y = 0 + -1y

Combine like terms: y + -1y = 0
-7x + 0 = 0 + -1y
-7x = 0 + -1y
Remove the zero:
-7x = -1y

Divide each side by '-7'.
x = 0.1428571429y

Simplifying
x = 0.1428571429y
Solution
x = {0, -3y, 0.1428571429y}

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