If it's not what You are looking for type in the equation solver your own equation and let us solve it.
12n^2+8n+5=0
a = 12; b = 8; c = +5;
Δ = b2-4ac
Δ = 82-4·12·5
Δ = -176
Delta is less than zero, so there is no solution for the equation
| 11x2-4x+11=0 | | 5+x=-3x+1 | | (X^2)-13(y^2)=1 | | 3+x=2x+6 | | 6x/4-10=1 | | 2/3x-2=1/6x | | X/(-42)=50+2x | | -4.8=-80z | | 18y-6y+22=11(y+2)+y | | 16=4^(t/2) | | 3x+2+71+53=180 | | (t)=-16t^2+6t+12 | | 13w=9w+28 | | 4s2=–52 | | -2(x-1)=x-3x-2 | | v2+48=0 | | d2+77=77 | | A(t)=-2.3(t)-7 | | 4x-22=9 | | x2=–2 | | (x+42)+3x=10 | | 2x+25+50=180 | | 9×n=45n=5 | | 4x+⅔=5 | | 7k=–9+7k | | x=6*12/10*2/4/2/4 | | x=6*12/10 | | 16-10b+12b-27=0 | | 0.7x+1.5=2 | | 18+k=3” | | 4/2x-3-7/3x-5=0 | | 4(x+2)-4=2(x+2)-12 |