x^2-12x-22=-2

Simple and best practice solution for x^2-12x-22=-2 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^2-12x-22=-2 equation:


Simplifying
x2 + -12x + -22 = -2

Reorder the terms:
-22 + -12x + x2 = -2

Solving
-22 + -12x + x2 = -2

Solving for variable 'x'.

Reorder the terms:
-22 + 2 + -12x + x2 = -2 + 2

Combine like terms: -22 + 2 = -20
-20 + -12x + x2 = -2 + 2

Combine like terms: -2 + 2 = 0
-20 + -12x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '20' to each side of the equation.
-20 + -12x + 20 + x2 = 0 + 20

Reorder the terms:
-20 + 20 + -12x + x2 = 0 + 20

Combine like terms: -20 + 20 = 0
0 + -12x + x2 = 0 + 20
-12x + x2 = 0 + 20

Combine like terms: 0 + 20 = 20
-12x + x2 = 20

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 = 20 + 36

Reorder the terms:
36 + -12x + x2 = 20 + 36

Combine like terms: 20 + 36 = 56
36 + -12x + x2 = 56

Factor a perfect square on the left side:
(x + -6)(x + -6) = 56

Calculate the square root of the right side: 7.483314774

Break this problem into two subproblems by setting 
(x + -6) equal to 7.483314774 and -7.483314774.

Subproblem 1

x + -6 = 7.483314774 Simplifying x + -6 = 7.483314774 Reorder the terms: -6 + x = 7.483314774 Solving -6 + x = 7.483314774 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 = 7.483314774 + 6 Combine like terms: -6 + 6 = 0 0 + x = 7.483314774 + 6 x = 7.483314774 + 6 Combine like terms: 7.483314774 + 6 = 13.483314774 x = 13.483314774 Simplifying x = 13.483314774

Subproblem 2

x + -6 = -7.483314774 Simplifying x + -6 = -7.483314774 Reorder the terms: -6 + x = -7.483314774 Solving -6 + x = -7.483314774 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 = -7.483314774 + 6 Combine like terms: -6 + 6 = 0 0 + x = -7.483314774 + 6 x = -7.483314774 + 6 Combine like terms: -7.483314774 + 6 = -1.483314774 x = -1.483314774 Simplifying x = -1.483314774

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.483314774, -1.483314774}

See similar equations:

| 9=3/5v | | 2x/5=-10 | | 4.3(2.4+3.7r)=66.005 | | -(21/4)=r-4/5 | | -4(p-5)=-9p | | x+2x+3x+4x=90 | | 2(1+2.5x)=29.5 | | 2(3n+3p)-2(2n+4p)= | | 11-x=8-x | | 5x-8-3x=3x-1 | | 6n-7=3(2n+5) | | 44(2r+8)=88 | | 0.75r=-3 | | -57.2=-2.5(3.2+4.1x) | | (13k+15)(k+13)=167 | | 9x^2-4x-3= | | -3y/4-8=1 | | 5x-14=39 | | -6(3n+1)=-150 | | 3x^2+y^4=2 | | 174=5(7+4x)-1 | | 4(x-3)=4.7w-7.6 | | 0.2*-8=-2 | | 13x^2+53x=0 | | 7(54)-6+6=-2(-162)-(-120)-1 | | 6x-3/36x^2-9 | | b+18b+3b=74 | | 6x+x+(6x-12)=27 | | 4.3-x=9.8 | | 200.96=6.28x^2+25.12x | | C=10(100)+250 | | -7x+2=-54 |

Equations solver categories