-21x^4-7x^3=

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Solution for -21x^4-7x^3= equation:


Simplifying
-21x4 + -7x3 = 0

Reorder the terms:
-7x3 + -21x4 = 0

Solving
-7x3 + -21x4 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '-7x3'.
-7x3(1 + 3x) = 0

Ignore the factor -7.

Subproblem 1

Set the factor 'x3' equal to zero and attempt to solve: Simplifying x3 = 0 Solving x3 = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x3 = 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 '(1 + 3x)' equal to zero and attempt to solve: Simplifying 1 + 3x = 0 Solving 1 + 3x = 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 + 3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 3x = 0 + -1 3x = 0 + -1 Combine like terms: 0 + -1 = -1 3x = -1 Divide each side by '3'. x = -0.3333333333 Simplifying x = -0.3333333333

Solution

x = {-0.3333333333}

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