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 = 1.5
1 + 2x + x2 = 1.5

Factor a perfect square on the left side:
(x + 1)(x + 1) = 1.5

Calculate the square root of the right side: 1.224744871

Break this problem into two subproblems by setting 
(x + 1) equal to 1.224744871 and -1.224744871.

Subproblem 1

x + 1 = 1.224744871 Simplifying x + 1 = 1.224744871 Reorder the terms: 1 + x = 1.224744871 Solving 1 + x = 1.224744871 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 = 1.224744871 + -1 Combine like terms: 1 + -1 = 0 0 + x = 1.224744871 + -1 x = 1.224744871 + -1 Combine like terms: 1.224744871 + -1 = 0.224744871 x = 0.224744871 Simplifying x = 0.224744871

Subproblem 2

x + 1 = -1.224744871 Simplifying x + 1 = -1.224744871 Reorder the terms: 1 + x = -1.224744871 Solving 1 + x = -1.224744871 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 = -1.224744871 + -1 Combine like terms: 1 + -1 = 0 0 + x = -1.224744871 + -1 x = -1.224744871 + -1 Combine like terms: -1.224744871 + -1 = -2.224744871 x = -2.224744871 Simplifying x = -2.224744871

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.224744871, -2.224744871}

See similar equations:

| 2x-3(2+x)=4x+6 | | (2y-3)=5 | | 10X-5Y-10-10X+5Y=10 | | x+5=5x | | 9x^2-24x-2=0 | | x+5x=5 | | 2+3(-4)R=8R+26 | | Y=-7x-18 | | x^3-7x-7=0 | | 2x^4-23x^3-37x+60=0 | | f(-3)=10x+3x^2 | | (5/8)(p-4)=2 | | 5x+2y-3z=43 | | 6(7x+6)+3=42x+39 | | 4[m+3]=18 | | 2(2-2)=-3x | | 4x^2-4=3x^2-3x | | A=x+y-4 | | Vover-6+2=-1 | | 10x+19=4x-5 | | 4x+5=x+7 | | 2=-4(-7y+1)+5(8+2y) | | 7(5m+3)=-13+m | | 0.25w-2.25=3.25 | | 2w-12=w+3x | | 0=x^3+x^2-100x-100 | | -6(4+5x)=126 | | (4x^2)+1+(4x^2)+9=650 | | 4.4=0.5ln(1-x)-0.5x | | 7(4+x)=21 | | 1-2(4r+7)= | | 3m-27=-26+4m |

Equations solver categories