4x^3+40x^2+84x=0

Simple and best practice solution for 4x^3+40x^2+84x=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 4x^3+40x^2+84x=0 equation:


Simplifying
4x3 + 40x2 + 84x = 0

Reorder the terms:
84x + 40x2 + 4x3 = 0

Solving
84x + 40x2 + 4x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4x'.
4x(21 + 10x + x2) = 0

Factor a trinomial.
4x((7 + x)(3 + x)) = 0

Ignore the factor 4.

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 '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 0 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 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Solution

x = {0, -7, -3}

See similar equations:

| 12X^2-48X-144=0 | | (-6)1/7 | | 6x+4y+2=14-x | | -11=-3k-4 | | M+68=119 | | 3x=4(1/4) | | X-4/2=6 | | 4x+4=124 | | 18/7+x=4 | | 8X^2+80X+192=0 | | (3+4)/7*9 | | 4y-2(1)=8 | | 10X^2+70X+100=0 | | x^2+14x+45=x^2 | | -13=-2k+4 | | M/9=45 | | 4y-2(0)=8 | | 150-46=x | | 4x+12y=3 | | 0.5x-4=16 | | x^2-7x=24/4 | | 4y-2(-1)=8 | | 15x^3+35-9x-21= | | x+2=4/x-1 | | 4y-2(-2)=8 | | x/24=-2 | | 8x-(5x+5)=19 | | (-15)-25-18= | | -x+1+14x=-8+4x+63 | | r(z^4+8)-(x^4+8)= | | x^7+5x^6= | | 6x+3+x=1+3x-10 |

Equations solver categories