S^4-16=0

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Solution for S^4-16=0 equation:


Simplifying
S4 + -16 = 0

Reorder the terms:
-16 + S4 = 0

Solving
-16 + S4 = 0

Solving for variable 'S'.

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

Add '16' to each side of the equation.
-16 + 16 + S4 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + S4 = 0 + 16
S4 = 0 + 16

Combine like terms: 0 + 16 = 16
S4 = 16

Simplifying
S4 = 16

Reorder the terms:
-16 + S4 = 16 + -16

Combine like terms: 16 + -16 = 0
-16 + S4 = 0

Factor a difference between two squares.
(4 + S2)(-4 + S2) = 0

Factor a difference between two squares.
(4 + S2)((2 + S)(-2 + S)) = 0

Subproblem 1

Set the factor '(4 + S2)' equal to zero and attempt to solve: Simplifying 4 + S2 = 0 Solving 4 + S2 = 0 Move all terms containing S to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + S2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + S2 = 0 + -4 S2 = 0 + -4 Combine like terms: 0 + -4 = -4 S2 = -4 Simplifying S2 = -4 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 '(2 + S)' equal to zero and attempt to solve: Simplifying 2 + S = 0 Solving 2 + S = 0 Move all terms containing S to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + S = 0 + -2 Combine like terms: 2 + -2 = 0 0 + S = 0 + -2 S = 0 + -2 Combine like terms: 0 + -2 = -2 S = -2 Simplifying S = -2

Subproblem 3

Set the factor '(-2 + S)' equal to zero and attempt to solve: Simplifying -2 + S = 0 Solving -2 + S = 0 Move all terms containing S to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + S = 0 + 2 Combine like terms: -2 + 2 = 0 0 + S = 0 + 2 S = 0 + 2 Combine like terms: 0 + 2 = 2 S = 2 Simplifying S = 2

Solution

S = {-2, 2}

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