x^2+x-0.5=0

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


Simplifying
x2 + x + -0.5 = 0

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

Solving
-0.5 + x + 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 + x + 0.5 + x2 = 0 + 0.5

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

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

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

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
x + 0.25 + x2 = 0.5 + 0.25

Reorder the terms:
0.25 + x + x2 = 0.5 + 0.25

Combine like terms: 0.5 + 0.25 = 0.75
0.25 + x + x2 = 0.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 0.75

Calculate the square root of the right side: 0.866025404

Break this problem into two subproblems by setting 
(x + 0.5) equal to 0.866025404 and -0.866025404.

Subproblem 1

x + 0.5 = 0.866025404 Simplifying x + 0.5 = 0.866025404 Reorder the terms: 0.5 + x = 0.866025404 Solving 0.5 + x = 0.866025404 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 0.866025404 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 0.866025404 + -0.5 x = 0.866025404 + -0.5 Combine like terms: 0.866025404 + -0.5 = 0.366025404 x = 0.366025404 Simplifying x = 0.366025404

Subproblem 2

x + 0.5 = -0.866025404 Simplifying x + 0.5 = -0.866025404 Reorder the terms: 0.5 + x = -0.866025404 Solving 0.5 + x = -0.866025404 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -0.866025404 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -0.866025404 + -0.5 x = -0.866025404 + -0.5 Combine like terms: -0.866025404 + -0.5 = -1.366025404 x = -1.366025404 Simplifying x = -1.366025404

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.366025404, -1.366025404}

See similar equations:

| 7x+2x=8x-10 | | 4x^3-2x^2=0 | | -2(x+11)+3x=18 | | x^2-2x=x(6+x) | | -2x+x=-16 | | x^2-2x+0.25=0 | | 9x+1.50y=19.50 | | 9m^2+28=-28 | | 3k-6.8=31 | | 4+log^9(3x-7)=6 | | 8x-5x-4+9=x+x+3-12 | | 3t-3=13-t | | 2y+4(y+3)=-30 | | 3x–2=–2x+8 | | y-2=-9 | | V^3=23 | | 2*3n-12=150 | | 6z+1=9-10z | | 2y+29=8-5y | | 6z-6=7z-4 | | 4y+5.4=5y | | -3x-18+3x=38 | | 5(w+4)=-2w-29 | | 76-5x=13x+20 | | 5x^2+2x=63 | | 6-7x=38-35x | | 7y+4.8=8y | | 4x^2-17x+30=4x+3 | | 5x+14=-10-7x | | 4x-17x+30=4x+3 | | 3x+3=11x-35 | | 2x^2+y^2=50 |

Equations solver categories