3x^3-33x^2=90x

Simple and best practice solution for 3x^3-33x^2=90x 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 3x^3-33x^2=90x equation:


Simplifying
3x3 + -33x2 = 90x

Reorder the terms:
-33x2 + 3x3 = 90x

Solving
-33x2 + 3x3 = 90x

Solving for variable 'x'.

Reorder the terms:
-90x + -33x2 + 3x3 = 90x + -90x

Combine like terms: 90x + -90x = 0
-90x + -33x2 + 3x3 = 0

Factor out the Greatest Common Factor (GCF), '3x'.
3x(-30 + -11x + x2) = 0

Ignore the factor 3.

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 '(-30 + -11x + x2)' equal to zero and attempt to solve: Simplifying -30 + -11x + x2 = 0 Solving -30 + -11x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '30' to each side of the equation. -30 + -11x + 30 + x2 = 0 + 30 Reorder the terms: -30 + 30 + -11x + x2 = 0 + 30 Combine like terms: -30 + 30 = 0 0 + -11x + x2 = 0 + 30 -11x + x2 = 0 + 30 Combine like terms: 0 + 30 = 30 -11x + x2 = 30 The x term is -11x. Take half its coefficient (-5.5). Square it (30.25) and add it to both sides. Add '30.25' to each side of the equation. -11x + 30.25 + x2 = 30 + 30.25 Reorder the terms: 30.25 + -11x + x2 = 30 + 30.25 Combine like terms: 30 + 30.25 = 60.25 30.25 + -11x + x2 = 60.25 Factor a perfect square on the left side: (x + -5.5)(x + -5.5) = 60.25 Calculate the square root of the right side: 7.762087348 Break this problem into two subproblems by setting (x + -5.5) equal to 7.762087348 and -7.762087348.

Subproblem 1

x + -5.5 = 7.762087348 Simplifying x + -5.5 = 7.762087348 Reorder the terms: -5.5 + x = 7.762087348 Solving -5.5 + x = 7.762087348 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = 7.762087348 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = 7.762087348 + 5.5 x = 7.762087348 + 5.5 Combine like terms: 7.762087348 + 5.5 = 13.262087348 x = 13.262087348 Simplifying x = 13.262087348

Subproblem 2

x + -5.5 = -7.762087348 Simplifying x + -5.5 = -7.762087348 Reorder the terms: -5.5 + x = -7.762087348 Solving -5.5 + x = -7.762087348 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = -7.762087348 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = -7.762087348 + 5.5 x = -7.762087348 + 5.5 Combine like terms: -7.762087348 + 5.5 = -2.262087348 x = -2.262087348 Simplifying x = -2.262087348

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.262087348, -2.262087348}

Solution

x = {0, 13.262087348, -2.262087348}

See similar equations:

| N-28=160 | | (1/9)^3x=28 | | 15sin^2x=14cosx+7 | | 112=X-50 | | N-50=110 | | 7-7sinx=5cos^2x | | x-9 = 5 (7-5x) | | 2y-(4y+11)=-7 | | 8=X-32 | | N-20=18 | | y=2x^2-8x+14 | | 6x+2x=350 | | N-33=22 | | N-33=33 | | x^3-13x^2-30x=0 | | U+1.98=9.93 | | 3(4x-2)+5=7x+6 | | X-4=42 | | 4x+21x+13+3x-1=180 | | 5A=3c-4y | | -6x^2-6x^2=0 | | N-27=17 | | 8r^2+16r+29=9 | | 3(C+4)=-10 | | 5(4x-4)=11 | | N-30=20 | | 17c-15c-17=5 | | y/11=-13 | | 8s-5s=15 | | 2+8x-y=3 | | 6=3(f-16)-3 | | 6/8i |

Equations solver categories