2x-x=x^2-x-6

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


Simplifying
2x + -1x = x2 + -1x + -6

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

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

Solving
1x = -6 + -1x + x2

Solving for variable 'x'.

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

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

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

Combine like terms: -6 + 6 = 0
6 + 2x + -1x2 = 0 + -1x + x + x2 + -1x2
6 + 2x + -1x2 = -1x + x + x2 + -1x2

Combine like terms: -1x + x = 0
6 + 2x + -1x2 = 0 + x2 + -1x2
6 + 2x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
6 + 2x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-6 + -2x + x2 = 0

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -2x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + -2x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -2x + x2 = 0 + 6
-2x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
-2x + x2 = 6

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = 6 + 1

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

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

Factor a perfect square on the left side:
(x + -1)(x + -1) = 7

Calculate the square root of the right side: 2.645751311

Break this problem into two subproblems by setting 
(x + -1) equal to 2.645751311 and -2.645751311.

Subproblem 1

x + -1 = 2.645751311 Simplifying x + -1 = 2.645751311 Reorder the terms: -1 + x = 2.645751311 Solving -1 + x = 2.645751311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 2.645751311 + 1 Combine like terms: -1 + 1 = 0 0 + x = 2.645751311 + 1 x = 2.645751311 + 1 Combine like terms: 2.645751311 + 1 = 3.645751311 x = 3.645751311 Simplifying x = 3.645751311

Subproblem 2

x + -1 = -2.645751311 Simplifying x + -1 = -2.645751311 Reorder the terms: -1 + x = -2.645751311 Solving -1 + x = -2.645751311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -2.645751311 + 1 Combine like terms: -1 + 1 = 0 0 + x = -2.645751311 + 1 x = -2.645751311 + 1 Combine like terms: -2.645751311 + 1 = -1.645751311 x = -1.645751311 Simplifying x = -1.645751311

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.645751311, -1.645751311}

See similar equations:

| 275=x-365 | | b-3.8=13.3 | | m-2.4=18 | | t-8=34 | | -x+10=x^2-5x+15 | | 2x-6=x^2-8x+19 | | 2(x+1)-3(2x-5)=-6x-3 | | -2x=3+2 | | -2+2x=3 | | 6xy-5=-5xy+18 | | 7y=3x+15 | | 18m=9 | | 150=50t | | 3(2x-3)+2(x+1)=3x+23 | | 4-4x=44 | | 600=105x-209490 | | i=105x-209490 | | 120x+160= | | 5(2z-1)-4(z+4)=2(z+1) | | -5x+9=-1 | | 11=y-3 | | x+7+2=58-x | | 35=11k | | n=1350+0.04*1350 | | 5t-7=3t+1 | | n=2379+.48*2379 | | 30x^2+40x= | | 5x-(x+3)=25 | | n=950+.10*950 | | 3x+20= | | 2b^2-b-30=0 | | 5306=.34a |

Equations solver categories