12x^10+42x^9+18x^8=

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Solution for 12x^10+42x^9+18x^8= equation:


Simplifying
12x10 + 42x9 + 18x8 = 0

Reorder the terms:
18x8 + 42x9 + 12x10 = 0

Solving
18x8 + 42x9 + 12x10 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '6x8'.
6x8(3 + 7x + 2x2) = 0

Factor a trinomial.
6x8((3 + x)(1 + 2x)) = 0

Ignore the factor 6.

Subproblem 1

Set the factor 'x8' equal to zero and attempt to solve: Simplifying x8 = 0 Solving x8 = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x8 = 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 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Subproblem 3

Set the factor '(1 + 2x)' equal to zero and attempt to solve: Simplifying 1 + 2x = 0 Solving 1 + 2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 2x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2x = 0 + -1 2x = 0 + -1 Combine like terms: 0 + -1 = -1 2x = -1 Divide each side by '2'. x = -0.5 Simplifying x = -0.5

Solution

x = {-3, -0.5}

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