6a^6-42a^5-108a^4=0

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Solution for 6a^6-42a^5-108a^4=0 equation:


Simplifying
6a6 + -42a5 + -108a4 = 0

Reorder the terms:
-108a4 + -42a5 + 6a6 = 0

Solving
-108a4 + -42a5 + 6a6 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '6a4'.
6a4(-18 + -7a + a2) = 0

Factor a trinomial.
6a4((-2 + -1a)(9 + -1a)) = 0

Ignore the factor 6.

Subproblem 1

Set the factor 'a4' equal to zero and attempt to solve: Simplifying a4 = 0 Solving a4 = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a4 = 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 '(-2 + -1a)' equal to zero and attempt to solve: Simplifying -2 + -1a = 0 Solving -2 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1a = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1a = 0 + 2 -1a = 0 + 2 Combine like terms: 0 + 2 = 2 -1a = 2 Divide each side by '-1'. a = -2 Simplifying a = -2

Subproblem 3

Set the factor '(9 + -1a)' equal to zero and attempt to solve: Simplifying 9 + -1a = 0 Solving 9 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1a = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1a = 0 + -9 -1a = 0 + -9 Combine like terms: 0 + -9 = -9 -1a = -9 Divide each side by '-1'. a = 9 Simplifying a = 9

Solution

a = {-2, 9}

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