3x^2+x-324=0

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


Simplifying
3x2 + x + -324 = 0

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

Solving
-324 + x + 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 + 0.3333333333x + x2 = 0

Move the constant term to the right:

Add '108' to each side of the equation.
-108 + 0.3333333333x + 108 + x2 = 0 + 108

Reorder the terms:
-108 + 108 + 0.3333333333x + x2 = 0 + 108

Combine like terms: -108 + 108 = 0
0 + 0.3333333333x + x2 = 0 + 108
0.3333333333x + x2 = 0 + 108

Combine like terms: 0 + 108 = 108
0.3333333333x + x2 = 108

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.3333333333x + 0.25 + x2 = 108 + 0.25

Reorder the terms:
0.25 + 0.3333333333x + x2 = 108 + 0.25

Combine like terms: 108 + 0.25 = 108.25
0.25 + 0.3333333333x + x2 = 108.25

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 108.25

Calculate the square root of the right side: 10.404326023

Break this problem into two subproblems by setting 
(x + 0.5) equal to 10.404326023 and -10.404326023.

Subproblem 1

x + 0.5 = 10.404326023 Simplifying x + 0.5 = 10.404326023 Reorder the terms: 0.5 + x = 10.404326023 Solving 0.5 + x = 10.404326023 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 10.404326023 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 10.404326023 + -0.5 x = 10.404326023 + -0.5 Combine like terms: 10.404326023 + -0.5 = 9.904326023 x = 9.904326023 Simplifying x = 9.904326023

Subproblem 2

x + 0.5 = -10.404326023 Simplifying x + 0.5 = -10.404326023 Reorder the terms: 0.5 + x = -10.404326023 Solving 0.5 + x = -10.404326023 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -10.404326023 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -10.404326023 + -0.5 x = -10.404326023 + -0.5 Combine like terms: -10.404326023 + -0.5 = -10.904326023 x = -10.904326023 Simplifying x = -10.904326023

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.904326023, -10.904326023}

See similar equations:

| 3x+25=45 | | U=4(3n+35)+9(n+1) | | 45-2= | | 3x-83=0 | | x(x+1)=2409 | | 2(4g+39)-8g-78=0 | | 4a+6a+8+5= | | 3m+7m= | | 0.5x-0.2(40+x)=0.4(40) | | 1968=16t^2 | | 20=-2(m+3)+3 | | y=0.5x^2-3x | | 0.6x+14.3=x-8.62 | | 3(2x-2.2)=8x-6.6 | | -0.5x+2.35=-0.1x+9.95 | | -0.5x+2.35=-0.1+9.95 | | 4-6y=21y-13 | | 4.9+0.9x=0.4 | | 7x-10=8x-6 | | 500x-0.41=300x+0.43 | | -5n+10=-4n-16 | | 2.2x-11=1.7x+5 | | (4v-2)(1-v)=0 | | 8.4=8x+6.8 | | 2(4+2)+2g=12 | | y-7.1=7 | | 2.7x+10-7.7x=5 | | 8x-65.1=x | | 2(x-1.4)=7.4 | | y=2x^2+90x+1000 | | 6x+6.84=2x+12 | | 1.7t+2.94=-10.49 |

Equations solver categories