x(-x-1)=4

Simple and best practice solution for x(-x-1)=4 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(-x-1)=4 equation:


Simplifying
x(-1x + -1) = 4

Reorder the terms:
x(-1 + -1x) = 4
(-1 * x + -1x * x) = 4
(-1x + -1x2) = 4

Solving
-1x + -1x2 = 4

Solving for variable 'x'.

Reorder the terms:
-4 + -1x + -1x2 = 4 + -4

Combine like terms: 4 + -4 = 0
-4 + -1x + -1x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(4 + x + x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(4 + x + x2)' equal to zero and attempt to solve: Simplifying 4 + x + x2 = 0 Solving 4 + x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-4' to each side of the equation. 4 + x + -4 + x2 = 0 + -4 Reorder the terms: 4 + -4 + x + x2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x + x2 = 0 + -4 x + x2 = 0 + -4 Combine like terms: 0 + -4 = -4 x + x2 = -4 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 = -4 + 0.25 Reorder the terms: 0.25 + x + x2 = -4 + 0.25 Combine like terms: -4 + 0.25 = -3.75 0.25 + x + x2 = -3.75 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = -3.75 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

See similar equations:

| (a-10)2=121 | | 2x^2-22x-24= | | s=1080-2.5t | | 6x-10+3x+9=180 | | X(-x+1)=4 | | 13t^2-40t+25=0 | | -6z=-12/11 | | x^2-12x^2+36= | | 3y-8x= | | 29w^2=w | | -5/12z=-3/5 | | 6t-15=-15 | | 64^3a=1/4 | | -7-2(1+7v)= | | 9x^2+5x=9x+16 | | -35=5/17x | | p=a(n-1)b | | s^2+s=4 | | 5(x+2)+3x+2=30 | | X^2-21x+24=0 | | 6/16=9/x | | -3x-0=-14 | | n/5=4-(-9) | | X-1/10=17/20 | | 2(3x-4)=8x-4-2 | | 8000*x=8888.88 | | 63=7*q | | 68=4(2-3x) | | 0=-4x^2-3x-9 | | 14m-77=35 | | (3x-5)/(x-2)=0 | | (5x^4)-(2x^3)=0 |

Equations solver categories