2x^3-16x^2+18x=0

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Solution for 2x^3-16x^2+18x=0 equation:


Simplifying
2x3 + -16x2 + 18x = 0

Reorder the terms:
18x + -16x2 + 2x3 = 0

Solving
18x + -16x2 + 2x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2x'.
2x(9 + -8x + x2) = 0

Ignore the factor 2.

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 '(9 + -8x + x2)' equal to zero and attempt to solve: Simplifying 9 + -8x + x2 = 0 Solving 9 + -8x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-9' to each side of the equation. 9 + -8x + -9 + x2 = 0 + -9 Reorder the terms: 9 + -9 + -8x + x2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -8x + x2 = 0 + -9 -8x + x2 = 0 + -9 Combine like terms: 0 + -9 = -9 -8x + x2 = -9 The x term is -8x. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8x + 16 + x2 = -9 + 16 Reorder the terms: 16 + -8x + x2 = -9 + 16 Combine like terms: -9 + 16 = 7 16 + -8x + x2 = 7 Factor a perfect square on the left side: (x + -4)(x + -4) = 7 Calculate the square root of the right side: 2.645751311 Break this problem into two subproblems by setting (x + -4) equal to 2.645751311 and -2.645751311.

Subproblem 1

x + -4 = 2.645751311 Simplifying x + -4 = 2.645751311 Reorder the terms: -4 + x = 2.645751311 Solving -4 + x = 2.645751311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 2.645751311 + 4 Combine like terms: -4 + 4 = 0 0 + x = 2.645751311 + 4 x = 2.645751311 + 4 Combine like terms: 2.645751311 + 4 = 6.645751311 x = 6.645751311 Simplifying x = 6.645751311

Subproblem 2

x + -4 = -2.645751311 Simplifying x + -4 = -2.645751311 Reorder the terms: -4 + x = -2.645751311 Solving -4 + x = -2.645751311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -2.645751311 + 4 Combine like terms: -4 + 4 = 0 0 + x = -2.645751311 + 4 x = -2.645751311 + 4 Combine like terms: -2.645751311 + 4 = 1.354248689 x = 1.354248689 Simplifying x = 1.354248689

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.645751311, 1.354248689}

Solution

x = {0, 6.645751311, 1.354248689}

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