x^3-6x^2-22x=0

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Solution for x^3-6x^2-22x=0 equation:


Simplifying
x3 + -6x2 + -22x = 0

Reorder the terms:
-22x + -6x2 + x3 = 0

Solving
-22x + -6x2 + x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(-22 + -6x + x2) = 0

Subproblem 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 = 0

Subproblem 2

Set the factor '(-22 + -6x + x2)' equal to zero and attempt to solve: Simplifying -22 + -6x + x2 = 0 Solving -22 + -6x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '22' to each side of the equation. -22 + -6x + 22 + x2 = 0 + 22 Reorder the terms: -22 + 22 + -6x + x2 = 0 + 22 Combine like terms: -22 + 22 = 0 0 + -6x + x2 = 0 + 22 -6x + x2 = 0 + 22 Combine like terms: 0 + 22 = 22 -6x + x2 = 22 The x term is -6x. Take half its coefficient (-3). Square it (9) and add it to both sides. Add '9' to each side of the equation. -6x + 9 + x2 = 22 + 9 Reorder the terms: 9 + -6x + x2 = 22 + 9 Combine like terms: 22 + 9 = 31 9 + -6x + x2 = 31 Factor a perfect square on the left side: (x + -3)(x + -3) = 31 Calculate the square root of the right side: 5.567764363 Break this problem into two subproblems by setting (x + -3) equal to 5.567764363 and -5.567764363.

Subproblem 1

x + -3 = 5.567764363 Simplifying x + -3 = 5.567764363 Reorder the terms: -3 + x = 5.567764363 Solving -3 + x = 5.567764363 Solving for variable 'x'. 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 = 5.567764363 + 3 Combine like terms: -3 + 3 = 0 0 + x = 5.567764363 + 3 x = 5.567764363 + 3 Combine like terms: 5.567764363 + 3 = 8.567764363 x = 8.567764363 Simplifying x = 8.567764363

Subproblem 2

x + -3 = -5.567764363 Simplifying x + -3 = -5.567764363 Reorder the terms: -3 + x = -5.567764363 Solving -3 + x = -5.567764363 Solving for variable 'x'. 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 = -5.567764363 + 3 Combine like terms: -3 + 3 = 0 0 + x = -5.567764363 + 3 x = -5.567764363 + 3 Combine like terms: -5.567764363 + 3 = -2.567764363 x = -2.567764363 Simplifying x = -2.567764363

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.567764363, -2.567764363}

Solution

x = {0, 8.567764363, -2.567764363}

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