11=x^2-2x

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


Simplifying
11 = x2 + -2x

Reorder the terms:
11 = -2x + x2

Solving
11 = -2x + x2

Solving for variable 'x'.

Reorder the terms:
11 + 2x + -1x2 = -2x + 2x + x2 + -1x2

Combine like terms: -2x + 2x = 0
11 + 2x + -1x2 = 0 + x2 + -1x2
11 + 2x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
11 + 2x + -1x2 = 0

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

Divide each side by '-1'.
-11 + -2x + x2 = 0

Move the constant term to the right:

Add '11' to each side of the equation.
-11 + -2x + 11 + x2 = 0 + 11

Reorder the terms:
-11 + 11 + -2x + x2 = 0 + 11

Combine like terms: -11 + 11 = 0
0 + -2x + x2 = 0 + 11
-2x + x2 = 0 + 11

Combine like terms: 0 + 11 = 11
-2x + x2 = 11

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 = 11 + 1

Reorder the terms:
1 + -2x + x2 = 11 + 1

Combine like terms: 11 + 1 = 12
1 + -2x + x2 = 12

Factor a perfect square on the left side:
(x + -1)(x + -1) = 12

Calculate the square root of the right side: 3.464101615

Break this problem into two subproblems by setting 
(x + -1) equal to 3.464101615 and -3.464101615.

Subproblem 1

x + -1 = 3.464101615 Simplifying x + -1 = 3.464101615 Reorder the terms: -1 + x = 3.464101615 Solving -1 + x = 3.464101615 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 = 3.464101615 + 1 Combine like terms: -1 + 1 = 0 0 + x = 3.464101615 + 1 x = 3.464101615 + 1 Combine like terms: 3.464101615 + 1 = 4.464101615 x = 4.464101615 Simplifying x = 4.464101615

Subproblem 2

x + -1 = -3.464101615 Simplifying x + -1 = -3.464101615 Reorder the terms: -1 + x = -3.464101615 Solving -1 + x = -3.464101615 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 = -3.464101615 + 1 Combine like terms: -1 + 1 = 0 0 + x = -3.464101615 + 1 x = -3.464101615 + 1 Combine like terms: -3.464101615 + 1 = -2.464101615 x = -2.464101615 Simplifying x = -2.464101615

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.464101615, -2.464101615}

See similar equations:

| 21y^3t^9/7y^6t^2 | | 4(-2m-3)=-6m+4 | | 2x(-5x+7)=94 | | 4d+7+3=34 | | 3x-4(2x-1)=17+3x-5 | | -75=5(-4+x) | | 2x-5+6x=6x+7 | | 8x+6=128 | | -3/y=33 | | -75=59-4+x | | -2x+9+3x=-2 | | -16=-x+6x-6 | | -8x+1=-23 | | 6x^7/15x^3 | | 63=4x+2x+3 | | -4(2x+6)=8 | | 4x-8-4x+8=0 | | 3t-8+6-6=3t-8 | | 5x+2+3x+18+2y+12=180 | | 5x-9-5x+3=0 | | 6x-8-4x-8=0 | | 8=4(3y-7) | | -7+6x-8=6x+9-7 | | -3=-15x-12 | | 2x+50=250 | | 4x+9=4+4x+9-4 | | 5x+2=25x+58 | | 12=3X-X-12 | | 2+3w=9 | | 2y*16=3y+6 | | 32y+12= | | 8x^3y-10x^3y^3+2x^2y=0 |

Equations solver categories