If it's not what You are looking for type in the equation solver your own equation and let us solve it.
b2+4b+4=0
We add all the numbers together, and all the variables
b^2+4b+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:$b=\frac{-b}{2a}=\frac{-4}{2}=-2$
| 90+x=450 | | w+10=4w-8-6w | | -4c-8=-3c | | 122-y=225 | | -g+8=g | | 3z+2(z-5)=35 | | 2x^2+x^2=320 | | Z2+18z+17=0 | | -6c=1-6c | | -u+229=99 | | 0.5^x+0.7^x=1 | | 251=-y+138 | | 251=-y | | 4.5q-5.9-5.79q=-2.2q-2.6 | | Y=x*x+7x+14 | | ?x(8+6)=42 | | Y=xXx+7x+14 | | Y=x2+7x+14 | | (v+6)(v-7)=0 | | 3x+2x+7=10x=-16 | | 4-a=4a+12 | | 9x+1/49=x+5/14 | | 10w+3=4w-9 | | 90=x+(3x-6) | | –50=–10+8h | | 350n=500 | | 14nX25=500 | | 1/2y-6=3 | | h(2)-11=6-2 | | 3x-5=7||-5 | | h(1/2)=2(1/2)+3(1/2)-5 | | 1/20=1/u+1/2.5u |