x^2-12x-1=0

Simple and best practice solution for x^2-12x-1=0 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^2-12x-1=0 equation:


Simplifying
x2 + -12x + -1 = 0

Reorder the terms:
-1 + -12x + x2 = 0

Solving
-1 + -12x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -12x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + -12x + x2 = 0 + 1

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

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

The x term is -12x.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12x + 36 + x2 = 1 + 36

Reorder the terms:
36 + -12x + x2 = 1 + 36

Combine like terms: 1 + 36 = 37
36 + -12x + x2 = 37

Factor a perfect square on the left side:
(x + -6)(x + -6) = 37

Calculate the square root of the right side: 6.08276253

Break this problem into two subproblems by setting 
(x + -6) equal to 6.08276253 and -6.08276253.

Subproblem 1

x + -6 = 6.08276253 Simplifying x + -6 = 6.08276253 Reorder the terms: -6 + x = 6.08276253 Solving -6 + x = 6.08276253 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = 6.08276253 + 6 Combine like terms: -6 + 6 = 0 0 + x = 6.08276253 + 6 x = 6.08276253 + 6 Combine like terms: 6.08276253 + 6 = 12.08276253 x = 12.08276253 Simplifying x = 12.08276253

Subproblem 2

x + -6 = -6.08276253 Simplifying x + -6 = -6.08276253 Reorder the terms: -6 + x = -6.08276253 Solving -6 + x = -6.08276253 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = -6.08276253 + 6 Combine like terms: -6 + 6 = 0 0 + x = -6.08276253 + 6 x = -6.08276253 + 6 Combine like terms: -6.08276253 + 6 = -0.08276253 x = -0.08276253 Simplifying x = -0.08276253

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.08276253, -0.08276253}

See similar equations:

| 4y=2y-2 | | 2*2+3x+15= | | -2x-3(2x+1)=-43 | | 20a^3b-6a^2b=0 | | 7-3(2-3x)=10 | | 0.15x=1.05 | | (2-4i)-(7+2i)=0 | | 3x+2(2x-2)=24 | | 6a^2+3a=0 | | -6x+5=11-4x | | 4(2(0)+7)=2(0)+25+3(2(0)+1) | | x^2-4x=4 | | 5(2x+1)-5=2(6x+5) | | 4(a-2)=3(a+8) | | 2x^2=10x+5 | | 2x^3=5x^2+12x | | 3(-2x+8)=-36 | | nx+b=2(x-n) | | 4x^2+5x+3=0 | | .5h+.33(h-6)=.83h+2 | | -y-8y+7= | | 8(n+4)-3(n+1)=7(1-n) | | -32+8m=-5(-4m-8) | | -4(2+3x)=40 | | 12q-15=6q+3 | | 3y-7y= | | -5y-5y= | | x^2-4x-15=0 | | 4t+6t=8t-13 | | 24x^2-14x-3=0 | | 8(3q+4)+1=3(12q-1) | | 2(2x+1)=8 |

Equations solver categories