2w^6-8w^5-42w^4=0

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Solution for 2w^6-8w^5-42w^4=0 equation:


Simplifying
2w6 + -8w5 + -42w4 = 0

Reorder the terms:
-42w4 + -8w5 + 2w6 = 0

Solving
-42w4 + -8w5 + 2w6 = 0

Solving for variable 'w'.

Factor out the Greatest Common Factor (GCF), '2w4'.
2w4(-21 + -4w + w2) = 0

Factor a trinomial.
2w4((-3 + -1w)(7 + -1w)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'w4' equal to zero and attempt to solve: Simplifying w4 = 0 Solving w4 = 0 Move all terms containing w to the left, all other terms to the right. Simplifying w4 = 0 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 '(-3 + -1w)' equal to zero and attempt to solve: Simplifying -3 + -1w = 0 Solving -3 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1w = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1w = 0 + 3 -1w = 0 + 3 Combine like terms: 0 + 3 = 3 -1w = 3 Divide each side by '-1'. w = -3 Simplifying w = -3

Subproblem 3

Set the factor '(7 + -1w)' equal to zero and attempt to solve: Simplifying 7 + -1w = 0 Solving 7 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1w = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1w = 0 + -7 -1w = 0 + -7 Combine like terms: 0 + -7 = -7 -1w = -7 Divide each side by '-1'. w = 7 Simplifying w = 7

Solution

w = {-3, 7}

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