x^2-11x-6=0

Simple and best practice solution for x^2-11x-6=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^2-11x-6=0 equation:


Simplifying
x2 + -11x + -6 = 0

Reorder the terms:
-6 + -11x + x2 = 0

Solving
-6 + -11x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -11x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + -11x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -11x + x2 = 0 + 6
-11x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
-11x + x2 = 6

The x term is -11x.  Take half its coefficient (-5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
-11x + 30.25 + x2 = 6 + 30.25

Reorder the terms:
30.25 + -11x + x2 = 6 + 30.25

Combine like terms: 6 + 30.25 = 36.25
30.25 + -11x + x2 = 36.25

Factor a perfect square on the left side:
(x + -5.5)(x + -5.5) = 36.25

Calculate the square root of the right side: 6.020797289

Break this problem into two subproblems by setting 
(x + -5.5) equal to 6.020797289 and -6.020797289.

Subproblem 1

x + -5.5 = 6.020797289 Simplifying x + -5.5 = 6.020797289 Reorder the terms: -5.5 + x = 6.020797289 Solving -5.5 + x = 6.020797289 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = 6.020797289 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = 6.020797289 + 5.5 x = 6.020797289 + 5.5 Combine like terms: 6.020797289 + 5.5 = 11.520797289 x = 11.520797289 Simplifying x = 11.520797289

Subproblem 2

x + -5.5 = -6.020797289 Simplifying x + -5.5 = -6.020797289 Reorder the terms: -5.5 + x = -6.020797289 Solving -5.5 + x = -6.020797289 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = -6.020797289 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = -6.020797289 + 5.5 x = -6.020797289 + 5.5 Combine like terms: -6.020797289 + 5.5 = -0.520797289 x = -0.520797289 Simplifying x = -0.520797289

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.520797289, -0.520797289}

See similar equations:

| -6x-2+3x-9x=6 | | c^2+4c=32 | | 50n/60n^4 | | f(x)=3x^2+18x-27 | | 1/2(40-y/1/4)+1/3y=5 | | 6mn-6n+3-n-mn-n= | | 4x-14=4x-14 | | B-5=12 | | 5+c^2=96 | | X^1/4-81=0 | | 3/2x+1=x/4-1 | | 2x+182=360 | | -19/60=a-7/5+3/4 | | -3x+x^3+2=2 | | -(1/8) | | 14x=9y+4 | | 9x+17=17x-1 | | 7y^2-28xy^3= | | 125000.00+65.00x=175.00x | | x+2/3x=10 | | x^3-4x^2+7x=0 | | 175.00x=600000 | | 5(2n-6)=30 | | 5(e-1)=20 | | 5(3-1)=20 | | 6x+1/7=2x-2/7 | | 2p+5q=43 | | 32-34i= | | -6x+15=4x*35 | | 10=x/9 | | 91-4x=32x+23 | | 3x+(2x-5)=(3x+2) |

Equations solver categories