-x^2+2x-11=0

Simple and best practice solution for -x^2+2x-11=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-11=0 equation:


Simplifying
-1x2 + 2x + -11 = 0

Reorder the terms:
-11 + 2x + -1x2 = 0

Solving
-11 + 2x + -1x2 = 0

Solving for variable 'x'.

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

Divide each side by '-1'.
11 + -2x + x2 = 0

Move the constant term to the right:

Add '-11' to each side of the equation.
11 + -2x + -11 + x2 = 0 + -11

Reorder the terms:
11 + -11 + -2x + x2 = 0 + -11

Combine like terms: 11 + -11 = 0
0 + -2x + x2 = 0 + -11
-2x + x2 = 0 + -11

Combine like terms: 0 + -11 = -11
-2x + x2 = -11

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 = -11 + 1

Reorder the terms:
1 + -2x + x2 = -11 + 1

Combine like terms: -11 + 1 = -10
1 + -2x + x2 = -10

Factor a perfect square on the left side:
(x + -1)(x + -1) = -10

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 7x-28+10x-13=180 | | 8+x=-12 | | 9c+6+9=3 | | 39=c*3 | | 3x+2=-8+x | | t+7=5 | | 5x-8=3x+14 | | 3=24 | | 15x^2+7x-2= | | 8x+16=12x+4 | | 8c+7.50=57.50 | | 72-4(8-2x)=100 | | 4.9x+3=3.9x | | 4y=-3x+24 | | -1.5+3= | | -35a+-114+99a=30 | | 6d-3d-5=13 | | 11j-8.8=13.2 | | 4x^2-20x+25= | | -3x-2(5x-7)=-12 | | 1.9+6p=7.9 | | 2X^2+12X+k=0 | | 9-6n-(-5n)-(-8)= | | 9v-8.1=9.9 | | 3y=4x-8 | | 24-4x=15x-4(3x+1) | | 4+17u=157 | | 20d-15=165 | | 4x-1=x-28 | | b^2+2b-35=0 | | 14q+14=126 | | X+9=-7x+9 |

Equations solver categories