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Simplifying 2x4 + -6x3 + 7x2 + -21x = 0 Reorder the terms: -21x + 7x2 + -6x3 + 2x4 = 0 Solving -21x + 7x2 + -6x3 + 2x4 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), 'x'. x(-21 + 7x + -6x2 + 2x3) = 0Subproblem 1
Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0Subproblem 2
Set the factor '(-21 + 7x + -6x2 + 2x3)' equal to zero and attempt to solve: Simplifying -21 + 7x + -6x2 + 2x3 = 0 Solving -21 + 7x + -6x2 + 2x3 = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.Solution
x = {0}
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