3x^7+15x^6+18x^5=

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Solution for 3x^7+15x^6+18x^5= equation:


Simplifying
3x7 + 15x6 + 18x5 = 0

Reorder the terms:
18x5 + 15x6 + 3x7 = 0

Solving
18x5 + 15x6 + 3x7 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x5'.
3x5(6 + 5x + x2) = 0

Factor a trinomial.
3x5((3 + x)(2 + x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor 'x5' equal to zero and attempt to solve: Simplifying x5 = 0 Solving x5 = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x5 = 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 '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Solution

x = {-3, -2}

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