If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-2n^2-4n-2=0
a = -2; b = -4; c = -2;
Δ = b2-4ac
Δ = -42-4·(-2)·(-2)
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$n=\frac{-b}{2a}=\frac{4}{-4}=-1$
| k=3k-8 | | y/10=30 | | 16b-8b=22 | | (7x+2x)+(20+5+159)=360 | | 0.07n=1 | | y=-4.5+1.5 | | -7(c+-5)=-63 | | 6|2-4x|=84 | | 14d-11d=6 | | 1/3hh=2 | | 6p=-8 | | 5+y=-5+y | | (2x-7)+3x+98+123+(x-2)=540 | | 3x+9+4x+4+5x-1=180 | | 4+2(x+2)=14 | | 5+y=5+y | | 7(x-5)-2x=-100 | | 3x+9+4x+4+5x-1=189 | | 32x+240=784 | | 23x=230 | | 10-2r=-10 | | 9+w-5=-5 | | 40=38+-2b | | 7+5x=47° | | 7-5x=47° | | g/3-1=2 | | 0=–2x+4 | | -0.40x-2=18 | | 6=k+15/10 | | F×X=-5x-3 | | c/2-19=-17 | | 18-6x+5x-11=x |