625y^4-16=

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Solution for 625y^4-16= equation:


Simplifying
625y4 + -16 = 0

Reorder the terms:
-16 + 625y4 = 0

Solving
-16 + 625y4 = 0

Solving for variable 'y'.

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

Add '16' to each side of the equation.
-16 + 16 + 625y4 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 625y4 = 0 + 16
625y4 = 0 + 16

Combine like terms: 0 + 16 = 16
625y4 = 16

Divide each side by '625'.
y4 = 0.0256

Simplifying
y4 = 0.0256

Reorder the terms:
-0.0256 + y4 = 0.0256 + -0.0256

Combine like terms: 0.0256 + -0.0256 = 0.0000
-0.0256 + y4 = 0.0000

Factor a difference between two squares.
(0.16 + y2)(-0.16 + y2) = 0.0000

Factor a difference between two squares.
(0.16 + y2)((0.4 + y)(-0.4 + y)) = 0.0000

Subproblem 1

Set the factor '(0.16 + y2)' equal to zero and attempt to solve: Simplifying 0.16 + y2 = 0 Solving 0.16 + y2 = 0 Move all terms containing y to the left, all other terms to the right. Add '-0.16' to each side of the equation. 0.16 + -0.16 + y2 = 0 + -0.16 Combine like terms: 0.16 + -0.16 = 0.00 0.00 + y2 = 0 + -0.16 y2 = 0 + -0.16 Combine like terms: 0 + -0.16 = -0.16 y2 = -0.16 Simplifying y2 = -0.16 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 '(0.4 + y)' equal to zero and attempt to solve: Simplifying 0.4 + y = 0 Solving 0.4 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-0.4' to each side of the equation. 0.4 + -0.4 + y = 0 + -0.4 Combine like terms: 0.4 + -0.4 = 0.0 0.0 + y = 0 + -0.4 y = 0 + -0.4 Combine like terms: 0 + -0.4 = -0.4 y = -0.4 Simplifying y = -0.4

Subproblem 3

Set the factor '(-0.4 + y)' equal to zero and attempt to solve: Simplifying -0.4 + y = 0 Solving -0.4 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '0.4' to each side of the equation. -0.4 + 0.4 + y = 0 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + y = 0 + 0.4 y = 0 + 0.4 Combine like terms: 0 + 0.4 = 0.4 y = 0.4 Simplifying y = 0.4

Solution

y = {-0.4, 0.4}

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