If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x2+12x+85=0
We add all the numbers together, and all the variables
x^2+12x+85=0
a = 1; b = 12; c = +85;
Δ = b2-4ac
Δ = 122-4·1·85
Δ = -196
Delta is less than zero, so there is no solution for the equation
| 2x+6=4x–8 | | 1+4-2x+7=5x+5x | | 4x2+7=25 | | -5x+7=14-4x | | 4-2n=-2+1-5n+2 | | 8c+4/3+2c+6/12=8/6 | | 1-6n=1+n | | 4(-1+73/20x)-2=-2(-1-x)+1 | | n3-8n+12=0 | | 3(3x1)-(x-1)=6(x10) | | 2x+1/4=x+2/3 | | 5p+13=7p+13 | | x+4=2x–6 | | 10x+44=14x | | 8-6x=8-6x | | 10x−2=20x−2 | | 8+2b=12+4b | | 3y+6=24y+12 | | 2x+43+2x-3=189 | | (18x-8)+(6x+4)+(6x+4)=180 | | 2(5r+10)=15(2r-16) | | 11x+30=60-2x | | 6,975,000,000=5(4)^x | | (0.10)m+10.00=23.80, | | n2-6n-30=0 | | b2+36=0 | | 5x+10=36+60x | | x+7=4x-4 | | 6x-5=2x+2 | | -6x+9x=105 | | X/3-5=x+7 | | (3x+23)+35=203 |