x^2+2x+0.5=0

Simple and best practice solution for x^2+2x+0.5=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+0.5=0 equation:


Simplifying
x2 + 2x + 0.5 = 0

Reorder the terms:
0.5 + 2x + x2 = 0

Solving
0.5 + 2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-0.5' to each side of the equation.
0.5 + 2x + -0.5 + x2 = 0 + -0.5

Reorder the terms:
0.5 + -0.5 + 2x + x2 = 0 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + 2x + x2 = 0 + -0.5
2x + x2 = 0 + -0.5

Combine like terms: 0 + -0.5 = -0.5
2x + x2 = -0.5

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 = -0.5 + 1

Reorder the terms:
1 + 2x + x2 = -0.5 + 1

Combine like terms: -0.5 + 1 = 0.5
1 + 2x + x2 = 0.5

Factor a perfect square on the left side:
(x + 1)(x + 1) = 0.5

Calculate the square root of the right side: 0.707106781

Break this problem into two subproblems by setting 
(x + 1) equal to 0.707106781 and -0.707106781.

Subproblem 1

x + 1 = 0.707106781 Simplifying x + 1 = 0.707106781 Reorder the terms: 1 + x = 0.707106781 Solving 1 + x = 0.707106781 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 = 0.707106781 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0.707106781 + -1 x = 0.707106781 + -1 Combine like terms: 0.707106781 + -1 = -0.292893219 x = -0.292893219 Simplifying x = -0.292893219

Subproblem 2

x + 1 = -0.707106781 Simplifying x + 1 = -0.707106781 Reorder the terms: 1 + x = -0.707106781 Solving 1 + x = -0.707106781 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 = -0.707106781 + -1 Combine like terms: 1 + -1 = 0 0 + x = -0.707106781 + -1 x = -0.707106781 + -1 Combine like terms: -0.707106781 + -1 = -1.707106781 x = -1.707106781 Simplifying x = -1.707106781

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.292893219, -1.707106781}

See similar equations:

| -6*-4=x | | 2a+2b+a= | | 8x-3a=-4x+6a | | -9-(-15)=X | | 4r+9=2r-1 | | (x-4y-3)dx-(3x-6y-5)dy=0 | | x^6-25x-1385.25= | | (x^2)+0.19x+-0.084=0 | | x:2:2:2=6 | | (x^2)+0.06x+-0.028=0 | | 28-5x=4x+17 | | 8(Ln(4x))=56 | | (x^2)+0.06x-0.028=0 | | x^2+3x^1+2=0 | | 13+3x+12=33 | | 5x-4x+2=12 | | 35+63=182 | | a+b+a+b= | | 5r+6p-2r-3p= | | 8n-3= | | 4c+8d-3c+d= | | 9x-4a=5x+7a | | 7m-11=52 | | x=6-9 | | -3(2x+5)=-9 | | (7x-3)(x-2)=0 | | 2x+1-7=0 | | x^2+6x^1+5=0 | | 9.5m-2.3=17 | | x^2+6x-1+5=0 | | 4x+9a=7a-5x | | x^2-3x^1-18=0 |

Equations solver categories