9x^3+18x^2-5x=0

Simple and best practice solution for 9x^3+18x^2-5x=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 9x^3+18x^2-5x=0 equation:


Simplifying
9x3 + 18x2 + -5x = 0

Reorder the terms:
-5x + 18x2 + 9x3 = 0

Solving
-5x + 18x2 + 9x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(-5 + 18x + 9x2) = 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 '(-5 + 18x + 9x2)' equal to zero and attempt to solve: Simplifying -5 + 18x + 9x2 = 0 Solving -5 + 18x + 9x2 = 0 Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. -0.5555555556 + 2x + x2 = 0 Move the constant term to the right: Add '0.5555555556' to each side of the equation. -0.5555555556 + 2x + 0.5555555556 + x2 = 0 + 0.5555555556 Reorder the terms: -0.5555555556 + 0.5555555556 + 2x + x2 = 0 + 0.5555555556 Combine like terms: -0.5555555556 + 0.5555555556 = 0.0000000000 0.0000000000 + 2x + x2 = 0 + 0.5555555556 2x + x2 = 0 + 0.5555555556 Combine like terms: 0 + 0.5555555556 = 0.5555555556 2x + x2 = 0.5555555556 The x term is 2x. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2x + 1 + x2 = 0.5555555556 + 1 Reorder the terms: 1 + 2x + x2 = 0.5555555556 + 1 Combine like terms: 0.5555555556 + 1 = 1.5555555556 1 + 2x + x2 = 1.5555555556 Factor a perfect square on the left side: (x + 1)(x + 1) = 1.5555555556 Calculate the square root of the right side: 1.247219129 Break this problem into two subproblems by setting (x + 1) equal to 1.247219129 and -1.247219129.

Subproblem 1

x + 1 = 1.247219129 Simplifying x + 1 = 1.247219129 Reorder the terms: 1 + x = 1.247219129 Solving 1 + x = 1.247219129 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 1.247219129 + -1 Combine like terms: 1 + -1 = 0 0 + x = 1.247219129 + -1 x = 1.247219129 + -1 Combine like terms: 1.247219129 + -1 = 0.247219129 x = 0.247219129 Simplifying x = 0.247219129

Subproblem 2

x + 1 = -1.247219129 Simplifying x + 1 = -1.247219129 Reorder the terms: 1 + x = -1.247219129 Solving 1 + x = -1.247219129 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -1.247219129 + -1 Combine like terms: 1 + -1 = 0 0 + x = -1.247219129 + -1 x = -1.247219129 + -1 Combine like terms: -1.247219129 + -1 = -2.247219129 x = -2.247219129 Simplifying x = -2.247219129

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.247219129, -2.247219129}

Solution

x = {0, 0.247219129, -2.247219129}

See similar equations:

| 4b-80=40 | | -[3x-(2x+1)]=-8-[3(2x-4)-3x] | | 12x+4=5+4 | | 2/7y=-14 | | -[7z-(11z+10)]=10+(3z+3) | | 12x+4=5+4x | | -7x-9y-4x+8y= | | -16p-5(6-5p)=6(p-2)-18 | | 6+x-9=2 | | -12x-3(6-6x)=4(x-2) | | 5(x+2)=2x | | -12=p-4+p | | -12p-3(6-6p)=4(p-2) | | (2x+7)(4+8)=0 | | 8m+55=127 | | 3-3x-2x=-2 | | 3+y+4=10 | | (5x)/6=13 | | 42-6a=90 | | -1=-2+3x-3x | | d=2t+12 | | y×y/x=27 | | 2y+45=y^2+10y+25 | | y.y/x=21 | | z^4-5=0 | | -1=-3p-1+3p | | (7+5i)(-3+4i)= | | 9c+5=32 | | 12p^2=36 | | -2x+2=-1.5+2.5 | | y=2.3+5x | | 3w+55=w^2+10w+25 |

Equations solver categories