3x^3+42x^2+147x=0

Simple and best practice solution for 3x^3+42x^2+147x=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 3x^3+42x^2+147x=0 equation:


Simplifying
3x3 + 42x2 + 147x = 0

Reorder the terms:
147x + 42x2 + 3x3 = 0

Solving
147x + 42x2 + 3x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x'.
3x(49 + 14x + x2) = 0

Factor a trinomial.
3x((7 + x)(7 + x)) = 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 '(7 + x)' equal to zero and attempt to solve: Simplifying 7 + x = 0 Solving 7 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + x = 0 + -7 x = 0 + -7 Combine like terms: 0 + -7 = -7 x = -7 Simplifying x = -7

Subproblem 3

Set the factor '(7 + x)' equal to zero and attempt to solve: Simplifying 7 + x = 0 Solving 7 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + x = 0 + -7 x = 0 + -7 Combine like terms: 0 + -7 = -7 x = -7 Simplifying x = -7

Solution

x = {0, -7, -7}

See similar equations:

| (k+1)(k-5)= | | 5x^2=x-2 | | 4x-(x-7)=9+3(x-4)-2x | | 3x+1(1+3)=11 | | 7d-4=-165 | | f(n)=3n+5 | | 1-x+(-x)= | | -5x+13-2x=41 | | n^2-14+48=8 | | 3r-7+4r=5r+23 | | x^2=2x^2-9 | | 4x^2-25=15x | | 0.02*x=0.05*y-10000 | | 100x=1500 | | 8x+15=5x-45 | | 4a^4-16a^2+16= | | -x^2+7x=1 | | 1.2-0.8=-6 | | 3x+12+2x=-18 | | -x^3-x^2-x-2=0 | | 3n^2-21n+30= | | -16c^2-16c-5=-5-17c^2 | | 2n^2-8n-42=0 | | 20=d/.5 | | 6x+3(5x-2)=36 | | .5x+.45(50)=38.5 | | 0.2x+0.75=0.5x+2 | | 8x+4-2(1-x)=8+10x-8 | | 5x(3x)=102 | | 5x^3+19x=-12 | | 3n-4j=28 | | 7a^2-56a+112=0 |

Equations solver categories