1x^2-2x-165=0

Simple and best practice solution for 1x^2-2x-165=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 1x^2-2x-165=0 equation:


Simplifying
1x2 + -2x + -165 = 0

Reorder the terms:
-165 + -2x + 1x2 = 0

Solving
-165 + -2x + 1x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '165' to each side of the equation.
-165 + -2x + 165 + x2 = 0 + 165

Reorder the terms:
-165 + 165 + -2x + x2 = 0 + 165

Combine like terms: -165 + 165 = 0
0 + -2x + x2 = 0 + 165
-2x + x2 = 0 + 165

Combine like terms: 0 + 165 = 165
-2x + x2 = 165

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 = 165 + 1

Reorder the terms:
1 + -2x + x2 = 165 + 1

Combine like terms: 165 + 1 = 166
1 + -2x + x2 = 166

Factor a perfect square on the left side:
(x + -1)(x + -1) = 166

Calculate the square root of the right side: 12.884098727

Break this problem into two subproblems by setting 
(x + -1) equal to 12.884098727 and -12.884098727.

Subproblem 1

x + -1 = 12.884098727 Simplifying x + -1 = 12.884098727 Reorder the terms: -1 + x = 12.884098727 Solving -1 + x = 12.884098727 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 = 12.884098727 + 1 Combine like terms: -1 + 1 = 0 0 + x = 12.884098727 + 1 x = 12.884098727 + 1 Combine like terms: 12.884098727 + 1 = 13.884098727 x = 13.884098727 Simplifying x = 13.884098727

Subproblem 2

x + -1 = -12.884098727 Simplifying x + -1 = -12.884098727 Reorder the terms: -1 + x = -12.884098727 Solving -1 + x = -12.884098727 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 = -12.884098727 + 1 Combine like terms: -1 + 1 = 0 0 + x = -12.884098727 + 1 x = -12.884098727 + 1 Combine like terms: -12.884098727 + 1 = -11.884098727 x = -11.884098727 Simplifying x = -11.884098727

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.884098727, -11.884098727}

See similar equations:

| (y^2)-6x=0 | | 0,8=40000/x | | x^2=0.0005 | | x-(x*0.05)=16152.96 | | x+y+z=1004x+3y+1÷4z=100 | | 27X^5/X | | (6-7i)(8+9i)=0 | | 4cos(3x-(x/2)) | | 10y+18=4(2y+7) | | 3z-1=8z-11 | | 7a=3(a-2) | | 130/150=x/180 | | (6-7x)(8+9x)=0 | | 19/x=152/4 | | 0.16+x=10 | | 23+3y-2=13y-9-4y | | [5x+0.9lnx]8= | | X+18+4x=-16-4x-20 | | -(4x+-6)=18 | | 18000/52 | | -7=b-(7) | | 2=x(1-(x/10)) | | 4n-19=n+5 | | Y=x^3-6.25x | | 0.02/1=x/3 | | 396x+30(9)-49=23x+50045-64x | | 2(a+m)=5m-3+a | | 901x-13x=9 | | 658-2x=29-3x+4 | | 8x-400=30000-78x+203 | | 4x+3y=8.08 | | 3000x+-55-2x=175+99x |

Equations solver categories