x^2-2x-144=0

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


Simplifying
x2 + -2x + -144 = 0

Reorder the terms:
-144 + -2x + x2 = 0

Solving
-144 + -2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '144' to each side of the equation.
-144 + -2x + 144 + x2 = 0 + 144

Reorder the terms:
-144 + 144 + -2x + x2 = 0 + 144

Combine like terms: -144 + 144 = 0
0 + -2x + x2 = 0 + 144
-2x + x2 = 0 + 144

Combine like terms: 0 + 144 = 144
-2x + x2 = 144

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = 144 + 1

Reorder the terms:
1 + -2x + x2 = 144 + 1

Combine like terms: 144 + 1 = 145
1 + -2x + x2 = 145

Factor a perfect square on the left side:
(x + -1)(x + -1) = 145

Calculate the square root of the right side: 12.041594579

Break this problem into two subproblems by setting 
(x + -1) equal to 12.041594579 and -12.041594579.

Subproblem 1

x + -1 = 12.041594579 Simplifying x + -1 = 12.041594579 Reorder the terms: -1 + x = 12.041594579 Solving -1 + x = 12.041594579 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 12.041594579 + 1 Combine like terms: -1 + 1 = 0 0 + x = 12.041594579 + 1 x = 12.041594579 + 1 Combine like terms: 12.041594579 + 1 = 13.041594579 x = 13.041594579 Simplifying x = 13.041594579

Subproblem 2

x + -1 = -12.041594579 Simplifying x + -1 = -12.041594579 Reorder the terms: -1 + x = -12.041594579 Solving -1 + x = -12.041594579 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -12.041594579 + 1 Combine like terms: -1 + 1 = 0 0 + x = -12.041594579 + 1 x = -12.041594579 + 1 Combine like terms: -12.041594579 + 1 = -11.041594579 x = -11.041594579 Simplifying x = -11.041594579

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.041594579, -11.041594579}

See similar equations:

| (2x)-(4)=(5x)-(2) | | 22x-1=5 | | j=(7x+5)(5x) | | 4-3lnx=7 | | x^2-3xy+y^2-2x+y-5=0 | | 1y+21=30 | | 21nx(x-6)=-4 | | (5x)-(3)=27 | | 2(x-2)-3(x+1)=0 | | 6y+21-5y=30 | | 4x=-4x-8 | | Log(x+2)16=2 | | 8x^5+4x^4-40x^3-20x^3= | | 11y-4=118y | | 7n-4=66 | | 2x^2+12y=0 | | 6x+4=20x-64 | | 6+r=3 | | x-(1.04)+4=0 | | y=-0.06x^2+10.1x+5 | | 7p+8q-3p+q+6-8= | | (x+8)+(3x+12)=180 | | 8+2x=-28 | | f(x)=7sin(x)+e^4x | | 6n+8n= | | 10x^2=-35x | | f(x)=7sinx+e^4x | | logx(6x-27)-logx(3)=1 | | -16+7x=-4y | | 3v^2-4v-15=0 | | (x+4+4i)(x-4-4i)=0 | | -14+5+x=20 |

Equations solver categories