-x^2+x-10=2

Simple and best practice solution for -x^2+x-10=2 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+x-10=2 equation:


Simplifying
-1x2 + x + -10 = 2

Reorder the terms:
-10 + x + -1x2 = 2

Solving
-10 + x + -1x2 = 2

Solving for variable 'x'.

Reorder the terms:
-10 + -2 + x + -1x2 = 2 + -2

Combine like terms: -10 + -2 = -12
-12 + x + -1x2 = 2 + -2

Combine like terms: 2 + -2 = 0
-12 + x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
12 + -1x + x2 = 0

Move the constant term to the right:

Add '-12' to each side of the equation.
12 + -1x + -12 + x2 = 0 + -12

Reorder the terms:
12 + -12 + -1x + x2 = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -1x + x2 = 0 + -12
-1x + x2 = 0 + -12

Combine like terms: 0 + -12 = -12
-1x + x2 = -12

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.
-1x + 0.25 + x2 = -12 + 0.25

Reorder the terms:
0.25 + -1x + x2 = -12 + 0.25

Combine like terms: -12 + 0.25 = -11.75
0.25 + -1x + x2 = -11.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -11.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| -4x-5(8-1)=135 | | -4(2x+5)-8=-12 | | -(b+2)=-23+2b | | Kn+4f=9vforx | | 0.635m-0.375=0.5m+0.875 | | 4(x+4)=9x+6-5x+10 | | 2*3-1= | | 10m^2+2m+9=2 | | -8x-2y+6x+9y= | | 7y+14=-28 | | 7b-5b-2=18 | | 4+2(4x-6)+2x=42 | | 3x-137=11x+143 | | 7+3x-12x= | | -7(x+3)-11=20+4 | | -6z=66 | | -21m^2-20m=0 | | (8+x)+(0+x)=24 | | 6x-39=-8(x+8)-3 | | -35x^2-18x+5=0 | | 20b^2-56b-12=0 | | y^100-49=0 | | Y-5=-(x+1) | | 0.4(x+300)=0.46x-306 | | 2x-5y+x-7x= | | 3x^2=96+12x | | 2y+7(x-1)+(7-3y)= | | -1=4r+3 | | -1+8a=129 | | 2.5g=5.8 | | 2y^2+8y-570=0 | | =2y+7(x-1)+(7-3y) |

Equations solver categories