0=x^2-x-144

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


Simplifying
0 = x2 + -1x + -144

Reorder the terms:
0 = -144 + -1x + x2

Solving
0 = -144 + -1x + x2

Solving for variable 'x'.

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

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

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

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

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

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

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

Move the constant term to the right:

Add '144' to each side of the equation.
-144 + -1x + 144 + x2 = 0 + 144

Reorder the terms:
-144 + 144 + -1x + x2 = 0 + 144

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

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

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = 144 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 144 + 0.25

Combine like terms: 144 + 0.25 = 144.25
0.25 + -1x + x2 = 144.25

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 144.25

Calculate the square root of the right side: 12.010412149

Break this problem into two subproblems by setting 
(x + 0.5) equal to 12.010412149 and -12.010412149.

Subproblem 1

x + 0.5 = 12.010412149 Simplifying x + 0.5 = 12.010412149 Reorder the terms: 0.5 + x = 12.010412149 Solving 0.5 + x = 12.010412149 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 12.010412149 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 12.010412149 + -0.5 x = 12.010412149 + -0.5 Combine like terms: 12.010412149 + -0.5 = 11.510412149 x = 11.510412149 Simplifying x = 11.510412149

Subproblem 2

x + 0.5 = -12.010412149 Simplifying x + 0.5 = -12.010412149 Reorder the terms: 0.5 + x = -12.010412149 Solving 0.5 + x = -12.010412149 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -12.010412149 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -12.010412149 + -0.5 x = -12.010412149 + -0.5 Combine like terms: -12.010412149 + -0.5 = -12.510412149 x = -12.510412149 Simplifying x = -12.510412149

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.510412149, -12.510412149}

See similar equations:

| 2x^3-4x^2-6x=0 | | -2(w+(-6))=8w | | f/2-22=48 | | 7x+1.75=4x+3.10 | | 3b^2+12b+1=3 | | 18-3x=27 | | a/-8+15=23 | | N^2-16n+48=-9 | | 7+1.75x=4+3.10x | | X^2+14x-38=8 | | 41=6m-7 | | 2x^2+8x+14=8 | | z-9z=4z-6-z | | 55=-7y+6 | | 4p^2+16p-23=-9 | | R^2-18r+14=-3 | | -3t+9=-21 | | 25/m-m/5+m | | 18-.50y=3+.50y | | 1.75x=3.10x | | ln(y)=ln(4x)+ln(c) | | 120=72+x | | 1.74x=3.10x | | 20-2x=x-40 | | 18m-.50y=3+.50y | | 5m+12=8 | | x/225-x=0 | | 18-2c=-11 | | 3x+2=6x+7 | | Y=2-1.5 | | Y=0-1.5 | | 163.28=3.14*d |

Equations solver categories