x^2-2x-1.396=0

Simple and best practice solution for x^2-2x-1.396=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-1.396=0 equation:


Simplifying
x2 + -2x + -1.396 = 0

Reorder the terms:
-1.396 + -2x + x2 = 0

Solving
-1.396 + -2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '1.396' to each side of the equation.
-1.396 + -2x + 1.396 + x2 = 0 + 1.396

Reorder the terms:
-1.396 + 1.396 + -2x + x2 = 0 + 1.396

Combine like terms: -1.396 + 1.396 = 0.000
0.000 + -2x + x2 = 0 + 1.396
-2x + x2 = 0 + 1.396

Combine like terms: 0 + 1.396 = 1.396
-2x + x2 = 1.396

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 = 1.396 + 1

Reorder the terms:
1 + -2x + x2 = 1.396 + 1

Combine like terms: 1.396 + 1 = 2.396
1 + -2x + x2 = 2.396

Factor a perfect square on the left side:
(x + -1)(x + -1) = 2.396

Calculate the square root of the right side: 1.547901806

Break this problem into two subproblems by setting 
(x + -1) equal to 1.547901806 and -1.547901806.

Subproblem 1

x + -1 = 1.547901806 Simplifying x + -1 = 1.547901806 Reorder the terms: -1 + x = 1.547901806 Solving -1 + x = 1.547901806 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 = 1.547901806 + 1 Combine like terms: -1 + 1 = 0 0 + x = 1.547901806 + 1 x = 1.547901806 + 1 Combine like terms: 1.547901806 + 1 = 2.547901806 x = 2.547901806 Simplifying x = 2.547901806

Subproblem 2

x + -1 = -1.547901806 Simplifying x + -1 = -1.547901806 Reorder the terms: -1 + x = -1.547901806 Solving -1 + x = -1.547901806 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 = -1.547901806 + 1 Combine like terms: -1 + 1 = 0 0 + x = -1.547901806 + 1 x = -1.547901806 + 1 Combine like terms: -1.547901806 + 1 = -0.547901806 x = -0.547901806 Simplifying x = -0.547901806

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.547901806, -0.547901806}

See similar equations:

| 3t^2+t-4=0 | | 12x+5y=-60 | | 4x^2-5x=7 | | f(x)=6x^4 | | 6+x/12=-1 | | 3(x-2)=(x-6) | | 25x+8y+13z=54 | | x+2x=73 | | 8x=cy | | 7+4+11+11= | | 1500x=300x^2+1800 | | 4(x+26)=16x+80 | | 6(7x+6)=-300 | | 2(4-z)+10z=40 | | 11x+9=11x-2 | | -108=18x | | 12x+5+3x=10x-20 | | 3x^2+5x^2-6x-8=0 | | h(x)=5x^2 | | 3(x+1)=5x+11 | | x+81=92 | | 0.4x-(1+.15x)=3 | | 2x+28=6 | | -12a^2-(-4a^2+7)= | | -12t^2+408t=0 | | 3(7-3x)=3x-5(3x-1) | | 2x^2-172x+68=0 | | 6(y-5)=8 | | 6(x+3)=3(x+13) | | -x^2+50x+67=0 | | 1.4z=-8 | | 6x-8=70-7x |

Equations solver categories