3x^2+2x-324=0

Simple and best practice solution for 3x^2+2x-324=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^2+2x-324=0 equation:


Simplifying
3x2 + 2x + -324 = 0

Reorder the terms:
-324 + 2x + 3x2 = 0

Solving
-324 + 2x + 3x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
3 the coefficient of the squared term: 

Divide each side by '3'.
-108 + 0.6666666667x + x2 = 0

Move the constant term to the right:

Add '108' to each side of the equation.
-108 + 0.6666666667x + 108 + x2 = 0 + 108

Reorder the terms:
-108 + 108 + 0.6666666667x + x2 = 0 + 108

Combine like terms: -108 + 108 = 0
0 + 0.6666666667x + x2 = 0 + 108
0.6666666667x + x2 = 0 + 108

Combine like terms: 0 + 108 = 108
0.6666666667x + x2 = 108

The x term is 0.6666666667x.  Take half its coefficient (0.3333333334).
Square it (0.1111111112) and add it to both sides.

Add '0.1111111112' to each side of the equation.
0.6666666667x + 0.1111111112 + x2 = 108 + 0.1111111112

Reorder the terms:
0.1111111112 + 0.6666666667x + x2 = 108 + 0.1111111112

Combine like terms: 108 + 0.1111111112 = 108.1111111112
0.1111111112 + 0.6666666667x + x2 = 108.1111111112

Factor a perfect square on the left side:
(x + 0.3333333334)(x + 0.3333333334) = 108.1111111112

Calculate the square root of the right side: 10.397649307

Break this problem into two subproblems by setting 
(x + 0.3333333334) equal to 10.397649307 and -10.397649307.

Subproblem 1

x + 0.3333333334 = 10.397649307 Simplifying x + 0.3333333334 = 10.397649307 Reorder the terms: 0.3333333334 + x = 10.397649307 Solving 0.3333333334 + x = 10.397649307 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3333333334' to each side of the equation. 0.3333333334 + -0.3333333334 + x = 10.397649307 + -0.3333333334 Combine like terms: 0.3333333334 + -0.3333333334 = 0.0000000000 0.0000000000 + x = 10.397649307 + -0.3333333334 x = 10.397649307 + -0.3333333334 Combine like terms: 10.397649307 + -0.3333333334 = 10.0643159736 x = 10.0643159736 Simplifying x = 10.0643159736

Subproblem 2

x + 0.3333333334 = -10.397649307 Simplifying x + 0.3333333334 = -10.397649307 Reorder the terms: 0.3333333334 + x = -10.397649307 Solving 0.3333333334 + x = -10.397649307 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3333333334' to each side of the equation. 0.3333333334 + -0.3333333334 + x = -10.397649307 + -0.3333333334 Combine like terms: 0.3333333334 + -0.3333333334 = 0.0000000000 0.0000000000 + x = -10.397649307 + -0.3333333334 x = -10.397649307 + -0.3333333334 Combine like terms: -10.397649307 + -0.3333333334 = -10.7309826404 x = -10.7309826404 Simplifying x = -10.7309826404

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.0643159736, -10.7309826404}

See similar equations:

| f(x)3/4x-6 | | 24+F=16 | | 5/11*d=35 | | x^(-1/7)=(1/3) | | 6v^2-3v-15-2v=0 | | x^(1/7)=(1/3) | | 3919-209=209+5x-209 | | 7y+8=12+8 | | ln(5x+3)=ln(7)-ln(x-2) | | 3/5-2000 | | 5y^2-150y=-6y^3+125 | | 2x+1x=33 | | 80000=x(1.07)+17000 | | 2sen^2x+3cosx=0 | | 19+c=-17 | | 80000=0.7x+17000 | | v-1*1/3=1*4/5 | | 24z^3=20z^2+84z | | 28=10t | | 2=r^12 | | 4u-17=27 | | 3x=1*1/2 | | 2(logx)=-1 | | g-2/=-8 | | 8-42w=16 | | 4+2q-(3q+9)-(5q+8)= | | 75=6v | | 2(c+x)=3x | | x/2=13x | | n/.f=n/81 | | 1200x+500=24 | | 4x-17=-45 |

Equations solver categories