w^4-w^2-10=0

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Solution for w^4-w^2-10=0 equation:


Simplifying
w4 + -1w2 + -10 = 0

Reorder the terms:
-10 + -1w2 + w4 = 0

Solving
-10 + -1w2 + w4 = 0

Solving for variable 'w'.

Begin completing the square.

Move the constant term to the right:

Add '10' to each side of the equation.
-10 + -1w2 + 10 + w4 = 0 + 10

Reorder the terms:
-10 + 10 + -1w2 + w4 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + -1w2 + w4 = 0 + 10
-1w2 + w4 = 0 + 10

Combine like terms: 0 + 10 = 10
-1w2 + w4 = 10

The w term is -1w2.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1w2 + 0.25 + w4 = 10 + 0.25

Reorder the terms:
0.25 + -1w2 + w4 = 10 + 0.25

Combine like terms: 10 + 0.25 = 10.25
0.25 + -1w2 + w4 = 10.25

Factor a perfect square on the left side:
(w2 + -0.5)(w2 + -0.5) = 10.25

Calculate the square root of the right side: 3.201562119

Break this problem into two subproblems by setting 
(w2 + -0.5) equal to 3.201562119 and -3.201562119.

Subproblem 1

w2 + -0.5 = 3.201562119 Simplifying w2 + -0.5 = 3.201562119 Reorder the terms: -0.5 + w2 = 3.201562119 Solving -0.5 + w2 = 3.201562119 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + w2 = 3.201562119 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + w2 = 3.201562119 + 0.5 w2 = 3.201562119 + 0.5 Combine like terms: 3.201562119 + 0.5 = 3.701562119 w2 = 3.701562119 Simplifying w2 = 3.701562119 Take the square root of each side: w = {-1.923944417, 1.923944417}

Subproblem 2

w2 + -0.5 = -3.201562119 Simplifying w2 + -0.5 = -3.201562119 Reorder the terms: -0.5 + w2 = -3.201562119 Solving -0.5 + w2 = -3.201562119 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + w2 = -3.201562119 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + w2 = -3.201562119 + 0.5 w2 = -3.201562119 + 0.5 Combine like terms: -3.201562119 + 0.5 = -2.701562119 w2 = -2.701562119 Simplifying w2 = -2.701562119 Reorder the terms: 2.701562119 + w2 = -2.701562119 + 2.701562119 Combine like terms: -2.701562119 + 2.701562119 = 0.000000000 2.701562119 + w2 = 0.000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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