x^2+12x-68=0

Simple and best practice solution for x^2+12x-68=0 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-68=0 equation:


Simplifying
x2 + 12x + -68 = 0

Reorder the terms:
-68 + 12x + x2 = 0

Solving
-68 + 12x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '68' to each side of the equation.
-68 + 12x + 68 + x2 = 0 + 68

Reorder the terms:
-68 + 68 + 12x + x2 = 0 + 68

Combine like terms: -68 + 68 = 0
0 + 12x + x2 = 0 + 68
12x + x2 = 0 + 68

Combine like terms: 0 + 68 = 68
12x + x2 = 68

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 = 68 + 36

Reorder the terms:
36 + 12x + x2 = 68 + 36

Combine like terms: 68 + 36 = 104
36 + 12x + x2 = 104

Factor a perfect square on the left side:
(x + 6)(x + 6) = 104

Calculate the square root of the right side: 10.198039027

Break this problem into two subproblems by setting 
(x + 6) equal to 10.198039027 and -10.198039027.

Subproblem 1

x + 6 = 10.198039027 Simplifying x + 6 = 10.198039027 Reorder the terms: 6 + x = 10.198039027 Solving 6 + x = 10.198039027 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 = 10.198039027 + -6 Combine like terms: 6 + -6 = 0 0 + x = 10.198039027 + -6 x = 10.198039027 + -6 Combine like terms: 10.198039027 + -6 = 4.198039027 x = 4.198039027 Simplifying x = 4.198039027

Subproblem 2

x + 6 = -10.198039027 Simplifying x + 6 = -10.198039027 Reorder the terms: 6 + x = -10.198039027 Solving 6 + x = -10.198039027 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 = -10.198039027 + -6 Combine like terms: 6 + -6 = 0 0 + x = -10.198039027 + -6 x = -10.198039027 + -6 Combine like terms: -10.198039027 + -6 = -16.198039027 x = -16.198039027 Simplifying x = -16.198039027

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.198039027, -16.198039027}

See similar equations:

| 51+x=131 | | 19+x=2258 | | 9+999999999999999= | | 1a=8 | | 2x-3=6(x-3) | | 17+23.25x=27.50x | | 5t-7=3t+2 | | -9n-5=49 | | 4x+8=7x-2 | | 27-4m=2m+3 | | 42+x=1561 | | -5x-4=x+2 | | 24x+14=30 | | 22+x=285 | | 5r+4-r=14 | | 74+x=164 | | 9h-14=2h+35 | | -2x-8=-3x+1 | | 5(x-3)+6=4x+4 | | 3(x+y)+2(x-y)=4x | | 2y+14=8y-4 | | 4x-4=5x+18 | | (22500+-0.5y)+(22500+-0.5y)+y=45000 | | 2r-(s-r)=13+2r | | 18n=28 | | -12+7p=6p-5p | | 2x+y=45000 | | 2n-5=-5n+7x | | X-6+3x=26 | | 2m^2-2m-4=0 | | 7+3x=7+7x | | (A-3)(a+3)=16 |

Equations solver categories