x^2-2x-130=0

Simple and best practice solution for x^2-2x-130=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-130=0 equation:


Simplifying
x2 + -2x + -130 = 0

Reorder the terms:
-130 + -2x + x2 = 0

Solving
-130 + -2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '130' to each side of the equation.
-130 + -2x + 130 + x2 = 0 + 130

Reorder the terms:
-130 + 130 + -2x + x2 = 0 + 130

Combine like terms: -130 + 130 = 0
0 + -2x + x2 = 0 + 130
-2x + x2 = 0 + 130

Combine like terms: 0 + 130 = 130
-2x + x2 = 130

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 = 130 + 1

Reorder the terms:
1 + -2x + x2 = 130 + 1

Combine like terms: 130 + 1 = 131
1 + -2x + x2 = 131

Factor a perfect square on the left side:
(x + -1)(x + -1) = 131

Calculate the square root of the right side: 11.445523142

Break this problem into two subproblems by setting 
(x + -1) equal to 11.445523142 and -11.445523142.

Subproblem 1

x + -1 = 11.445523142 Simplifying x + -1 = 11.445523142 Reorder the terms: -1 + x = 11.445523142 Solving -1 + x = 11.445523142 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 = 11.445523142 + 1 Combine like terms: -1 + 1 = 0 0 + x = 11.445523142 + 1 x = 11.445523142 + 1 Combine like terms: 11.445523142 + 1 = 12.445523142 x = 12.445523142 Simplifying x = 12.445523142

Subproblem 2

x + -1 = -11.445523142 Simplifying x + -1 = -11.445523142 Reorder the terms: -1 + x = -11.445523142 Solving -1 + x = -11.445523142 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 = -11.445523142 + 1 Combine like terms: -1 + 1 = 0 0 + x = -11.445523142 + 1 x = -11.445523142 + 1 Combine like terms: -11.445523142 + 1 = -10.445523142 x = -10.445523142 Simplifying x = -10.445523142

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.445523142, -10.445523142}

See similar equations:

| 30x^2+51x+9=0 | | 60=8(3+b)/2 | | -46=-2x-3x-6 | | 4+4x=16+4x | | -4+3x+6x=41 | | 6x-8y=-4 | | 75=0.2*x | | 2x^2-3x+18=0 | | 5+9i/1+i | | z/3-8=14 | | 56x-14/24x-6 | | x+2x+x=y | | 21/3+r=43/4 | | 4(3a+6)= | | 3(d-5)=15 | | 40+x=2x | | X+3=9+2 | | -5x-9=-14 | | 1/10r=41/2 | | 3x-5x=-10-20 | | 2-x=3x+6 | | (p^2-4p-21)/(p^2-2p-35) | | 2/7r=6 | | X+x=10-2 | | 4x=136+9x | | 9-10x=83-24x | | 31x+21x=21 | | 4x+3x=10+4 | | 10=4*T*20/100 | | -64x^2+104x= | | 4x+x+20=200 | | 4/3r=31/2 |

Equations solver categories