-7x^6-42x^5+112x^4=0

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Solution for -7x^6-42x^5+112x^4=0 equation:


Simplifying
-7x6 + -42x5 + 112x4 = 0

Reorder the terms:
112x4 + -42x5 + -7x6 = 0

Solving
112x4 + -42x5 + -7x6 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '7x4'.
7x4(16 + -6x + -1x2) = 0

Factor a trinomial.
7x4((2 + -1x)(8 + x)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor 'x4' equal to zero and attempt to solve: Simplifying x4 = 0 Solving x4 = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x4 = 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 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 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 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Subproblem 3

Set the factor '(8 + x)' equal to zero and attempt to solve: Simplifying 8 + x = 0 Solving 8 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + x = 0 + -8 x = 0 + -8 Combine like terms: 0 + -8 = -8 x = -8 Simplifying x = -8

Solution

x = {2, -8}

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