x^2-2x-340=0

Simple and best practice solution for x^2-2x-340=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-340=0 equation:


Simplifying
x2 + -2x + -340 = 0

Reorder the terms:
-340 + -2x + x2 = 0

Solving
-340 + -2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '340' to each side of the equation.
-340 + -2x + 340 + x2 = 0 + 340

Reorder the terms:
-340 + 340 + -2x + x2 = 0 + 340

Combine like terms: -340 + 340 = 0
0 + -2x + x2 = 0 + 340
-2x + x2 = 0 + 340

Combine like terms: 0 + 340 = 340
-2x + x2 = 340

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 = 340 + 1

Reorder the terms:
1 + -2x + x2 = 340 + 1

Combine like terms: 340 + 1 = 341
1 + -2x + x2 = 341

Factor a perfect square on the left side:
(x + -1)(x + -1) = 341

Calculate the square root of the right side: 18.466185313

Break this problem into two subproblems by setting 
(x + -1) equal to 18.466185313 and -18.466185313.

Subproblem 1

x + -1 = 18.466185313 Simplifying x + -1 = 18.466185313 Reorder the terms: -1 + x = 18.466185313 Solving -1 + x = 18.466185313 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 = 18.466185313 + 1 Combine like terms: -1 + 1 = 0 0 + x = 18.466185313 + 1 x = 18.466185313 + 1 Combine like terms: 18.466185313 + 1 = 19.466185313 x = 19.466185313 Simplifying x = 19.466185313

Subproblem 2

x + -1 = -18.466185313 Simplifying x + -1 = -18.466185313 Reorder the terms: -1 + x = -18.466185313 Solving -1 + x = -18.466185313 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 = -18.466185313 + 1 Combine like terms: -1 + 1 = 0 0 + x = -18.466185313 + 1 x = -18.466185313 + 1 Combine like terms: -18.466185313 + 1 = -17.466185313 x = -17.466185313 Simplifying x = -17.466185313

Solution

The solution to the problem is based on the solutions from the subproblems. x = {19.466185313, -17.466185313}

See similar equations:

| x^2-24x+22=0 | | 42/3x=56 | | x^2-11x-60= | | -3.2=-0.6u+0.2u | | 3x/x^2-4-1/x+2 | | n+17=24 | | (2x+3)3=(3x-2) | | (c+1)(-4)= | | 25x^2+40xy+16y^2=0 | | 8/5t=-5/8 | | 5n+d=290 | | -3/4+a=2/5 | | 10.4-24.4= | | 180=(2x+6)+(2x-6) | | (x-4)(x-5)= | | -5.7+4.8x=14.8 | | 2h^2+8h+3=3 | | 4z=2.3+3.3 | | 912+16= | | 7n-11=59 | | 7.3x=-37.96 | | -2x-6(3x+5)=70 | | -5.7+4.8x=14.8l | | 3(w+4)=-18 | | 2w-7w=10 | | 9x+16+5x-4=180 | | 3x+4=19-2x+3 | | (m+3)(m+8)= | | (8x+2)+(9x+3)+90=180 | | -16x^2+256x+3600=0 | | 3(2m-5)=36 | | -16k^2+256k+3600=0 |

Equations solver categories