0=x^2+12x-144

Simple and best practice solution for 0=x^2+12x-144 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 0=x^2+12x-144 equation:


Simplifying
0 = x2 + 12x + -144

Reorder the terms:
0 = -144 + 12x + x2

Solving
0 = -144 + 12x + x2

Solving for variable 'x'.

Combine like terms: 0 + 144 = 144
144 + -12x + -1x2 = -144 + 12x + x2 + 144 + -12x + -1x2

Reorder the terms:
144 + -12x + -1x2 = -144 + 144 + 12x + -12x + x2 + -1x2

Combine like terms: -144 + 144 = 0
144 + -12x + -1x2 = 0 + 12x + -12x + x2 + -1x2
144 + -12x + -1x2 = 12x + -12x + x2 + -1x2

Combine like terms: 12x + -12x = 0
144 + -12x + -1x2 = 0 + x2 + -1x2
144 + -12x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
144 + -12x + -1x2 = 0

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

Divide each side by '-1'.
-144 + 12x + x2 = 0

Move the constant term to the right:

Add '144' to each side of the equation.
-144 + 12x + 144 + x2 = 0 + 144

Reorder the terms:
-144 + 144 + 12x + x2 = 0 + 144

Combine like terms: -144 + 144 = 0
0 + 12x + x2 = 0 + 144
12x + x2 = 0 + 144

Combine like terms: 0 + 144 = 144
12x + x2 = 144

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 = 144 + 36

Reorder the terms:
36 + 12x + x2 = 144 + 36

Combine like terms: 144 + 36 = 180
36 + 12x + x2 = 180

Factor a perfect square on the left side:
(x + 6)(x + 6) = 180

Calculate the square root of the right side: 13.416407865

Break this problem into two subproblems by setting 
(x + 6) equal to 13.416407865 and -13.416407865.

Subproblem 1

x + 6 = 13.416407865 Simplifying x + 6 = 13.416407865 Reorder the terms: 6 + x = 13.416407865 Solving 6 + x = 13.416407865 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 = 13.416407865 + -6 Combine like terms: 6 + -6 = 0 0 + x = 13.416407865 + -6 x = 13.416407865 + -6 Combine like terms: 13.416407865 + -6 = 7.416407865 x = 7.416407865 Simplifying x = 7.416407865

Subproblem 2

x + 6 = -13.416407865 Simplifying x + 6 = -13.416407865 Reorder the terms: 6 + x = -13.416407865 Solving 6 + x = -13.416407865 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 = -13.416407865 + -6 Combine like terms: 6 + -6 = 0 0 + x = -13.416407865 + -6 x = -13.416407865 + -6 Combine like terms: -13.416407865 + -6 = -19.416407865 x = -19.416407865 Simplifying x = -19.416407865

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.416407865, -19.416407865}

See similar equations:

| 4(n+6)-(n-6)=3(n+6) | | 5+x+4x=25 | | y=4g(x)+1 | | 8x=14+2 | | 3/8-1=-5 | | 4(n+6)-(n+6)=3(n+6) | | h=-16t^2+47t+2 | | 3/8-1x=5 | | 2n+2+n+4=3(n+6) | | 2+3x=-11 | | 3n+18=3(n+6) | | x+9=5x+33 | | -(5x-12)+2(4x+5)= | | x+.58+.15x=4.78 | | 20x+3x=x | | ln(2x+5)=12 | | 5=1.666x | | -2(x+5)=8x-4 | | H+3=11 | | -16x+15=-15x+6 | | 2u-11=7 | | 4xyz+5xyz-3xyz-xyz= | | 10(-3a+2b-4c)-9(3a-5b+3c)=0 | | 36=2/3x | | X^3+12x-2=0 | | 5b+15=9 | | (3x-7/4)-2=x/2 | | 2y-7=28 | | 1325-785.50= | | (3x-7/4-)2=x/2 | | tanx/1=8/12 | | 19x+14=8x+25 |

Equations solver categories