x(2x-12)=1

Simple and best practice solution for x(2x-12)=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 x(2x-12)=1 equation:


Simplifying
x(2x + -12) = 1

Reorder the terms:
x(-12 + 2x) = 1
(-12 * x + 2x * x) = 1
(-12x + 2x2) = 1

Solving
-12x + 2x2 = 1

Solving for variable 'x'.

Reorder the terms:
-1 + -12x + 2x2 = 1 + -1

Combine like terms: 1 + -1 = 0
-1 + -12x + 2x2 = 0

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

Divide each side by '2'.
-0.5 + -6x + x2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -6x + 0.5 + x2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -6x + x2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -6x + x2 = 0 + 0.5
-6x + x2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-6x + x2 = 0.5

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = 0.5 + 9

Reorder the terms:
9 + -6x + x2 = 0.5 + 9

Combine like terms: 0.5 + 9 = 9.5
9 + -6x + x2 = 9.5

Factor a perfect square on the left side:
(x + -3)(x + -3) = 9.5

Calculate the square root of the right side: 3.082207001

Break this problem into two subproblems by setting 
(x + -3) equal to 3.082207001 and -3.082207001.

Subproblem 1

x + -3 = 3.082207001 Simplifying x + -3 = 3.082207001 Reorder the terms: -3 + x = 3.082207001 Solving -3 + x = 3.082207001 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 3.082207001 + 3 Combine like terms: -3 + 3 = 0 0 + x = 3.082207001 + 3 x = 3.082207001 + 3 Combine like terms: 3.082207001 + 3 = 6.082207001 x = 6.082207001 Simplifying x = 6.082207001

Subproblem 2

x + -3 = -3.082207001 Simplifying x + -3 = -3.082207001 Reorder the terms: -3 + x = -3.082207001 Solving -3 + x = -3.082207001 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -3.082207001 + 3 Combine like terms: -3 + 3 = 0 0 + x = -3.082207001 + 3 x = -3.082207001 + 3 Combine like terms: -3.082207001 + 3 = -0.082207001 x = -0.082207001 Simplifying x = -0.082207001

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.082207001, -0.082207001}

See similar equations:

| 0.6x-0.7x+2=-3 | | -27=4x | | 13*x-5*(x+2)=4*(2*x-1)+7 | | 10x/6=106 | | Q=60-2P | | 0.8x-0.3-9=6 | | 6(3-6x)=-4(9x+2) | | -45x+0.33=-0.66 | | 3cos^2x+5cosx-2=0 | | r(1)=-1-3+1+7 | | c+32=17 | | -0.45x+0.33=-.66 | | -0.10(19)+0.75X=0.05(X-10) | | 6582=2 | | 10x/6 | | -9(11)=-9(6)-9x | | 2m+6m= | | 9s-28=-20+s | | 5x+10=(x+2) | | 4x-12=10y | | 8x^2y/6x= | | 3(3x)+2(5)=6x-300 | | 16x-1=14x-3 | | 21+7x+2x-4-6x=53 | | 4(15-8)= | | -0.9x+4.31=-0.4x+8.81 | | 4n+3n=77 | | 25=x^11 | | 2/5=3/10x | | 5x+2-6-12=29 | | 2/7x=11-10 | | 20x+7=-101-10x |

Equations solver categories