1-2x(x+1)=0

Simple and best practice solution for 1-2x(x+1)=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 1-2x(x+1)=0 equation:


Simplifying
1 + -2x(x + 1) = 0

Reorder the terms:
1 + -2x(1 + x) = 0
1 + (1 * -2x + x * -2x) = 0
1 + (-2x + -2x2) = 0

Solving
1 + -2x + -2x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-2 the coefficient of the squared term: 

Divide each side by '-2'.
-0.5 + x + x2 = 0

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.
 + 0.25 + x2 = 0.5 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + x2 = 0.5 + 0.25

Combine like terms: 0.5 + 0.25 = 0.75
1.25 + 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:

| 3ln(x+2)=0 | | 29-(-10n)=-18(n+91) | | 2x-6+9=3x+3+x | | -.3(2z+4)-4.3z= | | -6(y-4y)+9=-2(2y-y)+3+19y | | 10y^3=21y^2-9y | | 3k^2-60k+57=0 | | 10y^3=21y^2-7y | | 1.5x+6-3=4.5x-9 | | 17-6n=(47+19)n | | 7(a-7)+17=3(a-4) | | 24+5y-9=17y-12-3y | | q^2+23q+22=0 | | 4x+2x+14=32+8x-24 | | 3g^2-2g-16=0 | | 19x-2-7x=31+6x-5 | | -2(5-3x)=12-3(5-x) | | 10y^3-12y=7y^2 | | 3j^2-19j-14=0 | | 3x-7(6-x)=2 | | 2x-5=2(x+5) | | 11x-21=x | | 0.2x+10=50 | | 483+18x=21x+462 | | 16f^2+24f+9=0 | | 8x^2-40x-679=0 | | 2n^2+29n-15=0 | | b(6b-13)=0 | | 4(4x-3)+7=-4 | | 11q=9 | | 8/5.0= | | -9(x+9)-5=-86 |

Equations solver categories