If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2k^2+8k+3=-5
We move all terms to the left:
2k^2+8k+3-(-5)=0
We add all the numbers together, and all the variables
2k^2+8k+8=0
a = 2; b = 8; c = +8;
Δ = b2-4ac
Δ = 82-4·2·8
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$k=\frac{-b}{2a}=\frac{-8}{4}=-2$
| 10/3=2y | | 6x+93=14x-11 | | a–5=20 | | 3x-58=xx= | | 9x+3x−6=30 | | Y=6x+2,x=10 | | 3/x+22=8/x+3 | | 2x-12+x+30+3x+2+x+10=360 | | m^2+8m-5=8 | | Y=3x-1,x=4 | | -23-25=x | | 4x+60=x+24 | | 0.1x2+0.5x+15=22 | | 2+28=11x-53 | | 2x+24=x+17 | | X+19=2x+28 | | x/2+x=67 | | 33n=4n-1 | | 2x+36=x+18 | | 3y=48+2y | | 4(x+5=-8 | | 3x-2-5x=-2(x+3) | | k-3+ -7= -6 | | 6k^2-8k+8=0 | | 5x+1x+13=0 | | x-3.5=17.5 | | 6x-19.3=x+1.7 | | y÷11=5 | | 6a^2-4a-1=0 | | 0.1x2+0.5x+15=0 | | 3r+4+4=r+2 | | 15(x·x·x)+112x^2-20x-32=0 |