x^2=11+12x

Simple and best practice solution for x^2=11+12x 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=11+12x equation:


Simplifying
x2 = 11 + 12x

Solving
x2 = 11 + 12x

Solving for variable 'x'.

Reorder the terms:
-11 + -12x + x2 = 11 + 12x + -11 + -12x

Reorder the terms:
-11 + -12x + x2 = 11 + -11 + 12x + -12x

Combine like terms: 11 + -11 = 0
-11 + -12x + x2 = 0 + 12x + -12x
-11 + -12x + x2 = 12x + -12x

Combine like terms: 12x + -12x = 0
-11 + -12x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '11' to each side of the equation.
-11 + -12x + 11 + x2 = 0 + 11

Reorder the terms:
-11 + 11 + -12x + x2 = 0 + 11

Combine like terms: -11 + 11 = 0
0 + -12x + x2 = 0 + 11
-12x + x2 = 0 + 11

Combine like terms: 0 + 11 = 11
-12x + x2 = 11

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 = 11 + 36

Reorder the terms:
36 + -12x + x2 = 11 + 36

Combine like terms: 11 + 36 = 47
36 + -12x + x2 = 47

Factor a perfect square on the left side:
(x + -6)(x + -6) = 47

Calculate the square root of the right side: 6.8556546

Break this problem into two subproblems by setting 
(x + -6) equal to 6.8556546 and -6.8556546.

Subproblem 1

x + -6 = 6.8556546 Simplifying x + -6 = 6.8556546 Reorder the terms: -6 + x = 6.8556546 Solving -6 + x = 6.8556546 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 = 6.8556546 + 6 Combine like terms: -6 + 6 = 0 0 + x = 6.8556546 + 6 x = 6.8556546 + 6 Combine like terms: 6.8556546 + 6 = 12.8556546 x = 12.8556546 Simplifying x = 12.8556546

Subproblem 2

x + -6 = -6.8556546 Simplifying x + -6 = -6.8556546 Reorder the terms: -6 + x = -6.8556546 Solving -6 + x = -6.8556546 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 = -6.8556546 + 6 Combine like terms: -6 + 6 = 0 0 + x = -6.8556546 + 6 x = -6.8556546 + 6 Combine like terms: -6.8556546 + 6 = -0.8556546 x = -0.8556546 Simplifying x = -0.8556546

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.8556546, -0.8556546}

See similar equations:

| 50+7y-7=6y+21 | | 6x+8-4x=8+x-6 | | -78.3=.9x | | S-4=-6 | | X(-x^2-x-9)=-9 | | 12r-7q=-4r+3q | | (8+2w)(w)=2170 | | 2.5x+2.5x=40 | | 12r+4r=3q+7q | | 7/10-9=4 | | -4r+3q=12r-7q | | 5e-9=3e-1 | | -4r+3q=-7q+12r | | 8-2x=27+12x | | 3q-4r=-7q+12r | | 3y-8y=10 | | .50=-2x | | 3y-7=13-2y | | e/9= | | 14ab/56a | | .42=-3x | | 2.5(2-x)=1.2+x | | X+0.2X=-0.2-3 | | 200=.8x | | x+y=26x+5xy-5y=8 | | 5x-214=-11x | | 7x-20+5x=180 | | 7x-20+5x=90 | | 4.2=.75*4.2+u | | 1.4x=252 | | 3x+1=4c-2 | | T/6-5=10 |

Equations solver categories