2x-x^2-2=

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


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

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

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

Move the constant term to the right:

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

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

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

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

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 = -2 + 1

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

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

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

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 12n+9=6-3n | | 3*29=5d | | 0.07-0.007= | | 1/6(1-6x)=-1/3(6x+1/2) | | (3/2(5)-2) | | (3/2-2)+(-3+4) | | 6x-2i=(-2y)i+10 | | 3-3y=4 | | 3-2y=4-y | | 6(x+3)-17=15 | | 3n^2+18n-30=-9 | | -x-2(5-x)=5+2x-4 | | 5(n+2)+n/5(5+10n) | | -4x+40=-4 | | xy+xz=m | | 4/5f+60=0 | | .128-.035v=-.072v+.235 | | 504-334+321= | | (y+3)(y-2)= | | -4/7y+5/7y=-1/5-2/5 | | y^3+2y^6=-2y^2+10 | | (2+3x)+9= | | 12+10x=7x-8x-69 | | 3+8x=4x-10 | | 6-5(2-3r)+7=4(r-6)-17 | | 1/2(10+6-2) | | 4t+9=7b-2 | | 3/x+4-7=-4/x+4 | | C(13c+4c)=9 | | -6/5+3/5z=-1/3-1/4 | | w/2-3(14)=52 | | 94=6a+4 |

Equations solver categories