X2-4x=-4

Simple and best practice solution for X2-4x=-4 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 X2-4x=-4 equation: 



X2-4X=-4

We move all terms to the left:

X2-4X-(-4)=0

We add all the numbers together, and all the variables

X^2-4X+4=0

a = 1; b = -4; c = +4;
Δ = b2-4ac
Δ = -42-4·1·4
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$X=\frac{-b}{2a}=\frac{4}{2}=2$

See similar equations:

| T=9/8s+29 | | 1/2r+5=4r | | 6x2+9x=-5 | | 25+y=1/2y-3 | | -3=13+q/4 | | 27^2-342x=72 | | 25+7=1/2y-3 | | -2x-8=4+2x | | x+-11/5=51/2 | | z-21=54 | | 42/3=x+11/3 | | x^+27^=45^ | | -7+2p=1 | | 7u/6+3=5u/4 | | 17=5y-66 | | x4+x2-30=0 | | 9w-4w=7 | | (3/4)x=384/x | | 10x-4x=8 | | 21(a+1)=3(3a+7) | | x2-3x+3=0 | | x+11/5=51/2 | | 32-n=50 | | 8.3(x+3.1=83 | | X2-2x=-1 | | 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 |

Equations solver categories