625x^4-81y^4=0

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Solution for 625x^4-81y^4=0 equation:


Simplifying
625x4 + -81y4 = 0

Solving
625x4 + -81y4 = 0

Solving for variable 'x'.

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

Add '81y4' to each side of the equation.
625x4 + -81y4 + 81y4 = 0 + 81y4

Combine like terms: -81y4 + 81y4 = 0
625x4 + 0 = 0 + 81y4
625x4 = 0 + 81y4
Remove the zero:
625x4 = 81y4

Divide each side by '625'.
x4 = 0.1296y4

Simplifying
x4 = 0.1296y4

Combine like terms: 0.1296y4 + -0.1296y4 = 0.0000
x4 + -0.1296y4 = 0.0000

Factor a difference between two squares.
(x2 + 0.36y2)(x2 + -0.36y2) = 0.0000

Factor a difference between two squares.
(x2 + 0.36y2)((x + 0.6y)(x + -0.6y)) = 0.0000

Subproblem 1

Set the factor '(x2 + 0.36y2)' equal to zero and attempt to solve: Simplifying x2 + 0.36y2 = 0 Solving x2 + 0.36y2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-0.36y2' to each side of the equation. x2 + 0.36y2 + -0.36y2 = 0 + -0.36y2 Combine like terms: 0.36y2 + -0.36y2 = 0.00 x2 + 0.00 = 0 + -0.36y2 x2 = 0 + -0.36y2 Remove the zero: x2 = -0.36y2 Simplifying x2 = -0.36y2 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(x + 0.6y)' equal to zero and attempt to solve: Simplifying x + 0.6y = 0 Solving x + 0.6y = 0 Move all terms containing x to the left, all other terms to the right. Add '-0.6y' to each side of the equation. x + 0.6y + -0.6y = 0 + -0.6y Combine like terms: 0.6y + -0.6y = 0.0 x + 0.0 = 0 + -0.6y x = 0 + -0.6y Remove the zero: x = -0.6y Simplifying x = -0.6y

Subproblem 3

Set the factor '(x + -0.6y)' equal to zero and attempt to solve: Simplifying x + -0.6y = 0 Solving x + -0.6y = 0 Move all terms containing x to the left, all other terms to the right. Add '0.6y' to each side of the equation. x + -0.6y + 0.6y = 0 + 0.6y Combine like terms: -0.6y + 0.6y = 0.0 x + 0.0 = 0 + 0.6y x = 0 + 0.6y Remove the zero: x = 0.6y Simplifying x = 0.6y

Solution

x = {-0.6y, 0.6y}

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