x(x+2)=-12

Simple and best practice solution for x(x+2)=-12 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+2)=-12 equation:


Simplifying
x(x + 2) = -12

Reorder the terms:
x(2 + x) = -12
(2 * x + x * x) = -12
(2x + x2) = -12

Solving
2x + x2 = -12

Solving for variable 'x'.

Reorder the terms:
12 + 2x + x2 = -12 + 12

Combine like terms: -12 + 12 = 0
12 + 2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-12' to each side of the equation.
12 + 2x + -12 + x2 = 0 + -12

Reorder the terms:
12 + -12 + 2x + x2 = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 2x + x2 = 0 + -12
2x + x2 = 0 + -12

Combine like terms: 0 + -12 = -12
2x + x2 = -12

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 = -12 + 1

Reorder the terms:
1 + 2x + x2 = -12 + 1

Combine like terms: -12 + 1 = -11
1 + 2x + x2 = -11

Factor a perfect square on the left side:
(x + 1)(x + 1) = -11

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 56-13=11-6 | | 49.10=2.10x+5 | | 15y=121 | | y-7.4=8.3 | | h(x)=2x^2-5x+3 | | c+2.1=3.5 | | R/10=-10 | | 4c+4=6 | | f=15(s-40)+40 | | 3v^2+7v=6 | | 34-9=27 | | x+x(1.5)=40 | | -4+2-2(3y+2)=18 | | 2m+15=8m+69 | | X=-2+1.5y | | 5t+0.5*(4)=4t+0.5*(8) | | g-2/6=5/6 | | 3=g-1.2 | | 200-120x+12x^2=0 | | (4x^4+4y)dx+(4x+4y^2)dy=0 | | 6x=-3x | | 28+x+4=180 | | 5x+23+11x+27=360 | | -2xy*3x= | | 5x+23+11x+27=180 | | 2X+2(X+10)=52 | | 11x+4y=450 | | 2x(5x^2-5x+8)= | | 2x^2-3=8x | | (3-7i)-(4-8i)=0 | | 6x^2-40x+400=0 | | 11+0.27x=26+0.07 |

Equations solver categories