If it's not what You are looking for type in the equation solver your own equation and let us solve it.
8x^2+4x+5=0
a = 8; b = 4; c = +5;
Δ = b2-4ac
Δ = 42-4·8·5
Δ = -144
Delta is less than zero, so there is no solution for the equation
| 9w=7w+16= | | 5y+2+14=180 | | 1/7*x=9-2/7*x | | (5x^2-2x=115 | | x-6=64 | | x2+8x−13=0 | | (5/2x^2-2)(2x)=115 | | x+3=2.4 | | 8x=4x+10= | | 45=4y-15 | | 5x-7x+9+3x=15 | | 50+(x+20)+(x+10)=180 | | ((3x-4)(2x^2+5))(2)=0 | | 4/9=4a | | 2x+2-5=5(x+3) | | –12=–5–6n+11 | | 18x=72+9x | | 15.65-3.1p=-19.26-12.8p-8.74 | | 21y-12y-12=-30 | | R=4+10x | | 28x2=36x | | 7/6-1/6x=9 | | 5.5-1.2b=1.3 | | -15x=93 | | 12y-7=-9 | | 5.2-1.6b=1.2 | | 12z=11 | | 4=R+18x | | 15y=9y+42 | | 1.7m-2.13=2.8 | | 4(3x+2)=-5x+1 | | −15x+5=14 |