3x^2=6-2x

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


Simplifying
3x2 = 6 + -2x

Solving
3x2 = 6 + -2x

Solving for variable 'x'.

Reorder the terms:
-6 + 2x + 3x2 = 6 + -2x + -6 + 2x

Reorder the terms:
-6 + 2x + 3x2 = 6 + -6 + -2x + 2x

Combine like terms: 6 + -6 = 0
-6 + 2x + 3x2 = 0 + -2x + 2x
-6 + 2x + 3x2 = -2x + 2x

Combine like terms: -2x + 2x = 0
-6 + 2x + 3x2 = 0

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

Divide each side by '3'.
-2 + 0.6666666667x + x2 = 0

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + 0.6666666667x + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + 0.6666666667x + x2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 0.6666666667x + x2 = 0 + 2
0.6666666667x + x2 = 0 + 2

Combine like terms: 0 + 2 = 2
0.6666666667x + x2 = 2

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 = 2 + 0.1111111112

Reorder the terms:
0.1111111112 + 0.6666666667x + x2 = 2 + 0.1111111112

Combine like terms: 2 + 0.1111111112 = 2.1111111112
0.1111111112 + 0.6666666667x + x2 = 2.1111111112

Factor a perfect square on the left side:
(x + 0.3333333334)(x + 0.3333333334) = 2.1111111112

Calculate the square root of the right side: 1.452966315

Break this problem into two subproblems by setting 
(x + 0.3333333334) equal to 1.452966315 and -1.452966315.

Subproblem 1

x + 0.3333333334 = 1.452966315 Simplifying x + 0.3333333334 = 1.452966315 Reorder the terms: 0.3333333334 + x = 1.452966315 Solving 0.3333333334 + x = 1.452966315 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 = 1.452966315 + -0.3333333334 Combine like terms: 0.3333333334 + -0.3333333334 = 0.0000000000 0.0000000000 + x = 1.452966315 + -0.3333333334 x = 1.452966315 + -0.3333333334 Combine like terms: 1.452966315 + -0.3333333334 = 1.1196329816 x = 1.1196329816 Simplifying x = 1.1196329816

Subproblem 2

x + 0.3333333334 = -1.452966315 Simplifying x + 0.3333333334 = -1.452966315 Reorder the terms: 0.3333333334 + x = -1.452966315 Solving 0.3333333334 + x = -1.452966315 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 = -1.452966315 + -0.3333333334 Combine like terms: 0.3333333334 + -0.3333333334 = 0.0000000000 0.0000000000 + x = -1.452966315 + -0.3333333334 x = -1.452966315 + -0.3333333334 Combine like terms: -1.452966315 + -0.3333333334 = -1.7862996484 x = -1.7862996484 Simplifying x = -1.7862996484

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.1196329816, -1.7862996484}

See similar equations:

| [2(x^2)]+8x-10=0 | | 5(Y+4)+Y=3(Y+2)-2 | | 1.5x=60 | | (x^2)+5x-176=0 | | 6x^2-10x=-10 | | 4x-9x+8=x-4+12 | | -4(3.5)+3y=-2 | | 4(3.5)-y=10 | | x^4+12x^2+36=-0 | | 2x^2+8x=15 | | -4x+3(4x-10)=-2 | | -6Z-9Z=5Z+5+3Z | | -6Z-9Z=5Z | | 9x-18x^2=0 | | 60=4X+2y | | 69+7x=2x+59 | | 5(d-4)=100d+5 | | x^2+6x+5=6 | | 5X+8=5(X-6) | | x^4+12x^2=-36 | | 7.9x-2=6.9x | | n+13.5=-6.7 | | 9x+x=85 | | 8x+6x+4+9=9x+5+4x | | 2X-8X-15=-6X+8-15 | | 1.66a=3.5 | | 0.3x^2=0.6x+0.3 | | 24=0.625x+4 | | 4x+7+3x=19+7 | | 1x^2-18=0 | | 5(90-7x)=-126 | | -4x^2-32x+80= |

Equations solver categories