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

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


Simplifying
x2 + 4y2 + -4 = 0

Reorder the terms:
-4 + x2 + 4y2 = 0

Solving
-4 + x2 + 4y2 = 0

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + x2 + 4 + 4y2 = 0 + 4

Reorder the terms:
-4 + 4 + x2 + 4y2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + x2 + 4y2 = 0 + 4
x2 + 4y2 = 0 + 4

Combine like terms: 0 + 4 = 4
x2 + 4y2 = 4

Add '-4y2' to each side of the equation.
x2 + 4y2 + -4y2 = 4 + -4y2

Combine like terms: 4y2 + -4y2 = 0
x2 + 0 = 4 + -4y2
x2 = 4 + -4y2

Simplifying
x2 = 4 + -4y2

Reorder the terms:
-4 + x2 + 4y2 = 4 + -4y2 + -4 + 4y2

Reorder the terms:
-4 + x2 + 4y2 = 4 + -4 + -4y2 + 4y2

Combine like terms: 4 + -4 = 0
-4 + x2 + 4y2 = 0 + -4y2 + 4y2
-4 + x2 + 4y2 = -4y2 + 4y2

Combine like terms: -4y2 + 4y2 = 0
-4 + x2 + 4y2 = 0

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

Subproblem 1

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

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 = {2y, 2y}

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