3x^4-4x^3-3x^2=0

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Solution for 3x^4-4x^3-3x^2=0 equation:


Simplifying
3x4 + -4x3 + -3x2 = 0

Reorder the terms:
-3x2 + -4x3 + 3x4 = 0

Solving
-3x2 + -4x3 + 3x4 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x2'.
x2(-3 + -4x + 3x2) = 0

Subproblem 1

Set the factor 'x2' equal to zero and attempt to solve: Simplifying x2 = 0 Solving x2 = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x2 = 0 Take the square root of each side: x = {0}

Subproblem 2

Set the factor '(-3 + -4x + 3x2)' equal to zero and attempt to solve: Simplifying -3 + -4x + 3x2 = 0 Solving -3 + -4x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -1 + -1.333333333x + x2 = 0 Move the constant term to the right: Add '1' to each side of the equation. -1 + -1.333333333x + 1 + x2 = 0 + 1 Reorder the terms: -1 + 1 + -1.333333333x + x2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1.333333333x + x2 = 0 + 1 -1.333333333x + x2 = 0 + 1 Combine like terms: 0 + 1 = 1 -1.333333333x + x2 = 1 The x term is -1.333333333x. Take half its coefficient (-0.6666666665). Square it (0.4444444442) and add it to both sides. Add '0.4444444442' to each side of the equation. -1.333333333x + 0.4444444442 + x2 = 1 + 0.4444444442 Reorder the terms: 0.4444444442 + -1.333333333x + x2 = 1 + 0.4444444442 Combine like terms: 1 + 0.4444444442 = 1.4444444442 0.4444444442 + -1.333333333x + x2 = 1.4444444442 Factor a perfect square on the left side: (x + -0.6666666665)(x + -0.6666666665) = 1.4444444442 Calculate the square root of the right side: 1.201850425 Break this problem into two subproblems by setting (x + -0.6666666665) equal to 1.201850425 and -1.201850425.

Subproblem 1

x + -0.6666666665 = 1.201850425 Simplifying x + -0.6666666665 = 1.201850425 Reorder the terms: -0.6666666665 + x = 1.201850425 Solving -0.6666666665 + x = 1.201850425 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.6666666665' to each side of the equation. -0.6666666665 + 0.6666666665 + x = 1.201850425 + 0.6666666665 Combine like terms: -0.6666666665 + 0.6666666665 = 0.0000000000 0.0000000000 + x = 1.201850425 + 0.6666666665 x = 1.201850425 + 0.6666666665 Combine like terms: 1.201850425 + 0.6666666665 = 1.8685170915 x = 1.8685170915 Simplifying x = 1.8685170915

Subproblem 2

x + -0.6666666665 = -1.201850425 Simplifying x + -0.6666666665 = -1.201850425 Reorder the terms: -0.6666666665 + x = -1.201850425 Solving -0.6666666665 + x = -1.201850425 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.6666666665' to each side of the equation. -0.6666666665 + 0.6666666665 + x = -1.201850425 + 0.6666666665 Combine like terms: -0.6666666665 + 0.6666666665 = 0.0000000000 0.0000000000 + x = -1.201850425 + 0.6666666665 x = -1.201850425 + 0.6666666665 Combine like terms: -1.201850425 + 0.6666666665 = -0.5351837585 x = -0.5351837585 Simplifying x = -0.5351837585

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.8685170915, -0.5351837585}

Solution

x = {0, 1.8685170915, -0.5351837585}

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