3x^2-12x=6

Simple and best practice solution for 3x^2-12x=6 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^2-12x=6 equation:


Simplifying
3x2 + -12x = 6

Reorder the terms:
-12x + 3x2 = 6

Solving
-12x + 3x2 = 6

Solving for variable 'x'.

Reorder the terms:
-6 + -12x + 3x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-6 + -12x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-2 + -4x + x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-2 + -4x + x2)' equal to zero and attempt to solve: Simplifying -2 + -4x + x2 = 0 Solving -2 + -4x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '2' to each side of the equation. -2 + -4x + 2 + x2 = 0 + 2 Reorder the terms: -2 + 2 + -4x + x2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -4x + x2 = 0 + 2 -4x + x2 = 0 + 2 Combine like terms: 0 + 2 = 2 -4x + x2 = 2 The x term is -4x. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4x + 4 + x2 = 2 + 4 Reorder the terms: 4 + -4x + x2 = 2 + 4 Combine like terms: 2 + 4 = 6 4 + -4x + x2 = 6 Factor a perfect square on the left side: (x + -2)(x + -2) = 6 Calculate the square root of the right side: 2.449489743 Break this problem into two subproblems by setting (x + -2) equal to 2.449489743 and -2.449489743.

Subproblem 1

x + -2 = 2.449489743 Simplifying x + -2 = 2.449489743 Reorder the terms: -2 + x = 2.449489743 Solving -2 + x = 2.449489743 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 2.449489743 + 2 Combine like terms: -2 + 2 = 0 0 + x = 2.449489743 + 2 x = 2.449489743 + 2 Combine like terms: 2.449489743 + 2 = 4.449489743 x = 4.449489743 Simplifying x = 4.449489743

Subproblem 2

x + -2 = -2.449489743 Simplifying x + -2 = -2.449489743 Reorder the terms: -2 + x = -2.449489743 Solving -2 + x = -2.449489743 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -2.449489743 + 2 Combine like terms: -2 + 2 = 0 0 + x = -2.449489743 + 2 x = -2.449489743 + 2 Combine like terms: -2.449489743 + 2 = -0.449489743 x = -0.449489743 Simplifying x = -0.449489743

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.449489743, -0.449489743}

Solution

x = {4.449489743, -0.449489743}

See similar equations:

| -19n+12=-17n-14 | | 6(a+b)+a+3b= | | 7/2z=52/3 | | 3a-6a=4 | | 8-0.2k=8 | | 8a+4=44 | | 6+20x=5(4x+4) | | 2b-1.5=15 | | -58x-26=230.6 | | 9x-1=98 | | 1/3x+3=(6x+11)/6 | | 9/2x-2y=-18 | | 15-(7+x)= | | (1-7i)+(7+4i)= | | 11p-9=6p+26 | | 3r+2-7=6r+1 | | m+30r=120n | | 120n+30r=m | | -105=-7x+7(4x+9) | | 0.9(x+10)+0.3x=45 | | 25+3b=7b+13 | | 8z+z=8z-2 | | 18+3y-4=12y-1013y | | 30r+120n=m | | 13x-17x= | | 3d+6=12 | | 4(3+2)=5(2x-1) | | 2n-4=4-6n | | 2/3y+7=9 | | y/83/-4=5/4 | | 12ed+4=6e+8 | | 4m-9=7m-11 |

Equations solver categories