3x^2-12x=12

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


Simplifying
3x2 + -12x = 12

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

Solving
-12x + 3x2 = 12

Solving for variable 'x'.

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

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

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

Ignore the factor 3.

Subproblem 1

Set the factor '(-4 + -4x + x2)' equal to zero and attempt to solve: Simplifying -4 + -4x + x2 = 0 Solving -4 + -4x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '4' to each side of the equation. -4 + -4x + 4 + x2 = 0 + 4 Reorder the terms: -4 + 4 + -4x + x2 = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -4x + x2 = 0 + 4 -4x + x2 = 0 + 4 Combine like terms: 0 + 4 = 4 -4x + x2 = 4 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 = 4 + 4 Reorder the terms: 4 + -4x + x2 = 4 + 4 Combine like terms: 4 + 4 = 8 4 + -4x + x2 = 8 Factor a perfect square on the left side: (x + -2)(x + -2) = 8 Calculate the square root of the right side: 2.828427125 Break this problem into two subproblems by setting (x + -2) equal to 2.828427125 and -2.828427125.

Subproblem 1

x + -2 = 2.828427125 Simplifying x + -2 = 2.828427125 Reorder the terms: -2 + x = 2.828427125 Solving -2 + x = 2.828427125 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 = 2.828427125 + 2 Combine like terms: -2 + 2 = 0 0 + x = 2.828427125 + 2 x = 2.828427125 + 2 Combine like terms: 2.828427125 + 2 = 4.828427125 x = 4.828427125 Simplifying x = 4.828427125

Subproblem 2

x + -2 = -2.828427125 Simplifying x + -2 = -2.828427125 Reorder the terms: -2 + x = -2.828427125 Solving -2 + x = -2.828427125 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 = -2.828427125 + 2 Combine like terms: -2 + 2 = 0 0 + x = -2.828427125 + 2 x = -2.828427125 + 2 Combine like terms: -2.828427125 + 2 = -0.828427125 x = -0.828427125 Simplifying x = -0.828427125

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.828427125, -0.828427125}

Solution

x = {4.828427125, -0.828427125}

See similar equations:

| 6=2x+10+10x | | 2(x+6)=1/3(6x+36) | | 2.3(x+4)=14 | | 2((9/8)-(x/10))+(x/3)=5 | | 7y/5+y | | 14x+24=2x+48 | | 3x+16=90 | | (k-1)^2/7(3.14) | | 2(9/8-x/10)+(x/5)=5 | | 20d+13d=-43 | | 4x^(7/2)-12=0 | | 65-8x+=9 | | x^3+x=6 | | 27x+5y=30 | | p-5+6=-5 | | 4a-5(6+7a)= | | 4c+11=3 | | 51/2x63/4 | | 3y=2x+21 | | 7x+3y-2= | | 2w+6+4w=114 | | 3s^2-9s-3=21 | | 3a+b=6 | | 80+8=6y+6 | | 3y+2z=13 | | 35+90x=80x+75 | | 7y+5(5y-12)=327 | | -3y+4y=11 | | -3g=-4 | | 1+4cosx=-2cos^2x | | 20x+15=180 | | .75x+3.99=12.24 |

Equations solver categories