X2-2x=-1

Simple and best practice solution for X2-2x=-1 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 X2-2x=-1 equation: 



X2-2X=-1

We move all terms to the left:

X2-2X-(-1)=0

We add all the numbers together, and all the variables

X^2-2X+1=0

a = 1; b = -2; c = +1;
Δ = b2-4ac
Δ = -22-4·1·1
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$X=\frac{-b}{2a}=\frac{2}{2}=1$

See similar equations:

| 2x2-5x+25=0 | | a-3/5=5/6 | | 3.4x-2.5=28x+3.5 | | -3=u+2 | | y=95000(1)+200000 | | 22+2=4(x+3 | | -8=9+v | | x2-11+12=0 | | t^2+20t=9 | | 3^(9x)=81 | | -2(x-6)=36 | | 2x^2+9x-18=x^2+3x-2 | | -15x-45=45 | | 1=95000x+200000 | | j=-15=-22 | | 3^9x=81 | | 9=3/4e,e=12 | | 64+x^2-8x+16=x^2 | | 8/x=16/40 | | x+1/x=8 | | 8(x+2)/15=4 | | 2(-3+2y)=3y | | 3/10y+9=4/5y-1 | | X2+4x=-3 | | 5=x/4+-9 | | (-3+2y)+8=2y+5 | | 18-3m=36 | | 34y=12 | | x^2+8x+16=26 | | -4=7+y | | 9q+.2q=27.6 | | 5xX=30 |

Equations solver categories