w^4-16=0

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Solution for w^4-16=0 equation:


Simplifying
w4 + -16 = 0

Reorder the terms:
-16 + w4 = 0

Solving
-16 + w4 = 0

Solving for variable 'w'.

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

Add '16' to each side of the equation.
-16 + 16 + w4 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + w4 = 0 + 16
w4 = 0 + 16

Combine like terms: 0 + 16 = 16
w4 = 16

Simplifying
w4 = 16

Reorder the terms:
-16 + w4 = 16 + -16

Combine like terms: 16 + -16 = 0
-16 + w4 = 0

Factor a difference between two squares.
(4 + w2)(-4 + w2) = 0

Factor a difference between two squares.
(4 + w2)((2 + w)(-2 + w)) = 0

Subproblem 1

Set the factor '(4 + w2)' equal to zero and attempt to solve: Simplifying 4 + w2 = 0 Solving 4 + w2 = 0 Move all terms containing w to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + w2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + w2 = 0 + -4 w2 = 0 + -4 Combine like terms: 0 + -4 = -4 w2 = -4 Simplifying w2 = -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 + w)' equal to zero and attempt to solve: Simplifying 2 + w = 0 Solving 2 + w = 0 Move all terms containing w to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + w = 0 + -2 Combine like terms: 2 + -2 = 0 0 + w = 0 + -2 w = 0 + -2 Combine like terms: 0 + -2 = -2 w = -2 Simplifying w = -2

Subproblem 3

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

Solution

w = {-2, 2}

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