x^2-6x-2=x

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


Simplifying
x2 + -6x + -2 = x

Reorder the terms:
-2 + -6x + x2 = x

Solving
-2 + -6x + x2 = x

Solving for variable 'x'.

Reorder the terms:
-2 + -6x + -1x + x2 = x + -1x

Combine like terms: -6x + -1x = -7x
-2 + -7x + x2 = x + -1x

Combine like terms: x + -1x = 0
-2 + -7x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + -7x + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + -7x + x2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -7x + x2 = 0 + 2
-7x + x2 = 0 + 2

Combine like terms: 0 + 2 = 2
-7x + x2 = 2

The x term is -7x.  Take half its coefficient (-3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
-7x + 12.25 + x2 = 2 + 12.25

Reorder the terms:
12.25 + -7x + x2 = 2 + 12.25

Combine like terms: 2 + 12.25 = 14.25
12.25 + -7x + x2 = 14.25

Factor a perfect square on the left side:
(x + -3.5)(x + -3.5) = 14.25

Calculate the square root of the right side: 3.774917218

Break this problem into two subproblems by setting 
(x + -3.5) equal to 3.774917218 and -3.774917218.

Subproblem 1

x + -3.5 = 3.774917218 Simplifying x + -3.5 = 3.774917218 Reorder the terms: -3.5 + x = 3.774917218 Solving -3.5 + x = 3.774917218 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = 3.774917218 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = 3.774917218 + 3.5 x = 3.774917218 + 3.5 Combine like terms: 3.774917218 + 3.5 = 7.274917218 x = 7.274917218 Simplifying x = 7.274917218

Subproblem 2

x + -3.5 = -3.774917218 Simplifying x + -3.5 = -3.774917218 Reorder the terms: -3.5 + x = -3.774917218 Solving -3.5 + x = -3.774917218 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = -3.774917218 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = -3.774917218 + 3.5 x = -3.774917218 + 3.5 Combine like terms: -3.774917218 + 3.5 = -0.274917218 x = -0.274917218 Simplifying x = -0.274917218

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.274917218, -0.274917218}

See similar equations:

| 39=d-2 | | 24n=-24 | | A-13=18 | | -30-b=-11 | | 6(x-1/3)=6x+2/3 | | 0=-2x^2+2x+2 | | k/25=8 | | 1/3x+2=-13 | | -14=v/8 | | 0.4-5.6=2(0.2x-2.8) | | p-(-16)=-10 | | 6x+30=15x+3(2x-5) | | x-4(-4)=16 | | 5y=36 | | 3x+0.5=-6 | | 6-2+(-9+5).2= | | w^2/8-w/2-4=0 | | 3x+0.5=6 | | 3(2x-5)-(3x+4)=x-9 | | 2x-1+8-x=3-7x | | (4k-3)(3k-9)= | | b^2-2ab+2b-2a+a^2= | | 12=2n | | 25=-5(11.4286)-5y | | 3c=33 | | x-11=22-2x | | 3(11.4286)10y=30 | | 56=7b | | 7+4a-(2a+9)-(4a+9)= | | x+0.21x=49 | | 3(x+5)=x+27 | | 27=15+y |

Equations solver categories