-x^2+2x-4=0

Simple and best practice solution for -x^2+2x-4=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-4=0 equation:


Simplifying
-1x2 + 2x + -4 = 0

Reorder the terms:
-4 + 2x + -1x2 = 0

Solving
-4 + 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'.
4 + -2x + x2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -2x + -4 + x2 = 0 + -4

Reorder the terms:
4 + -4 + -2x + x2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -2x + x2 = 0 + -4
-2x + x2 = 0 + -4

Combine like terms: 0 + -4 = -4
-2x + x2 = -4

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 = -4 + 1

Reorder the terms:
1 + -2x + x2 = -4 + 1

Combine like terms: -4 + 1 = -3
1 + -2x + x2 = -3

Factor a perfect square on the left side:
(x + -1)(x + -1) = -3

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| B=hp | | 2x^2+154h-4225=0 | | w^2+12w+35=0 | | 5x+10=58+11x+2 | | 5p+2=4p-4 | | 3x^2+4x+3=0 | | 2y+8y=48 | | -32x^7-4x^6=0 | | 4x^2+17x-15= | | (-x)+4=7 | | 3x-62=3x-9 | | 3.45-3.1t=21.05 | | 9x-3-6x+15=30 | | X+8=(-4) | | 5b-11=13-b | | 7x+7y=3 | | K^2-5k=6 | | 7x+2=-14 | | 8x-8-3x+2=14 | | 3c-12=14+15c | | 3x+7-11x=79 | | 8-x=32 | | -3(x-4)+5=-2x-2 | | 4f+11=9 | | x+1+x=-13 | | 3x-2=-8 | | 11+n=18+2n | | 9+x=13 | | -6x+13x=56 | | -x^2-6x-9=0 | | (-3)-x=-9 | | 4a+4=3a-4 |

Equations solver categories