3x^2=6x+-1

Simple and best practice solution for 3x^2=6x+-1 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=6x+-1 equation:


Simplifying
3x2 = 6x + -1

Reorder the terms:
3x2 = -1 + 6x

Solving
3x2 = -1 + 6x

Solving for variable 'x'.

Reorder the terms:
1 + -6x + 3x2 = -1 + 6x + 1 + -6x

Reorder the terms:
1 + -6x + 3x2 = -1 + 1 + 6x + -6x

Combine like terms: -1 + 1 = 0
1 + -6x + 3x2 = 0 + 6x + -6x
1 + -6x + 3x2 = 6x + -6x

Combine like terms: 6x + -6x = 0
1 + -6x + 3x2 = 0

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

Divide each side by '3'.
0.3333333333 + -2x + x2 = 0

Move the constant term to the right:

Add '-0.3333333333' to each side of the equation.
0.3333333333 + -2x + -0.3333333333 + x2 = 0 + -0.3333333333

Reorder the terms:
0.3333333333 + -0.3333333333 + -2x + x2 = 0 + -0.3333333333

Combine like terms: 0.3333333333 + -0.3333333333 = 0.0000000000
0.0000000000 + -2x + x2 = 0 + -0.3333333333
-2x + x2 = 0 + -0.3333333333

Combine like terms: 0 + -0.3333333333 = -0.3333333333
-2x + x2 = -0.3333333333

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = -0.3333333333 + 1

Reorder the terms:
1 + -2x + x2 = -0.3333333333 + 1

Combine like terms: -0.3333333333 + 1 = 0.6666666667
1 + -2x + x2 = 0.6666666667

Factor a perfect square on the left side:
(x + -1)(x + -1) = 0.6666666667

Calculate the square root of the right side: 0.816496581

Break this problem into two subproblems by setting 
(x + -1) equal to 0.816496581 and -0.816496581.

Subproblem 1

x + -1 = 0.816496581 Simplifying x + -1 = 0.816496581 Reorder the terms: -1 + x = 0.816496581 Solving -1 + x = 0.816496581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 0.816496581 + 1 Combine like terms: -1 + 1 = 0 0 + x = 0.816496581 + 1 x = 0.816496581 + 1 Combine like terms: 0.816496581 + 1 = 1.816496581 x = 1.816496581 Simplifying x = 1.816496581

Subproblem 2

x + -1 = -0.816496581 Simplifying x + -1 = -0.816496581 Reorder the terms: -1 + x = -0.816496581 Solving -1 + x = -0.816496581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -0.816496581 + 1 Combine like terms: -1 + 1 = 0 0 + x = -0.816496581 + 1 x = -0.816496581 + 1 Combine like terms: -0.816496581 + 1 = 0.183503419 x = 0.183503419 Simplifying x = 0.183503419

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.816496581, 0.183503419}

See similar equations:

| 12.25=3lbs | | 3x+11=41-2x | | 36x^2-16x=0 | | 2n+1=n+6 | | 3lbs=48oz | | 7(x-9)=77 | | 3w+34=88 | | Sqrt(3+2x)=5 | | 0=4k^2-5k-21 | | p+19=-42 | | 15b-2=13 | | 6y^2+5=221 | | -8y-8=-16x+32 | | 2ln(x+7)=10 | | 1.5=0.5x | | -7n(2n-1)=0 | | 9(3b+7)=144 | | 4x*3=48 | | 6x+35X+9X=15(x+4)-25 | | 0.136x+5.54=94.58 | | 6r-8=2r | | 1/5x^2=54 | | 5a-2b^2+1= | | 0=3k^2-10k+8 | | 4=k+14/9 | | 18x-15=11x-8 | | x^2-x-8=-7x-1 | | 180-88-40= | | 7b+1=50 | | r/8+52=55 | | 10/120 | | -13x-42=-8x-27 |

Equations solver categories