If it's not what You are looking for type in the equation solver your own equation and let us solve it.
8x^2+2.5x+1280=0
a = 8; b = 2.5; c = +1280;
Δ = b2-4ac
Δ = 2.52-4·8·1280
Δ = -40953.75
Delta is less than zero, so there is no solution for the equation
| -4y-10-9y=2-9y | | 2x+5=x=5 | | 3(2x=4)=(x-13) | | 17x-14=54 | | 2-7w=-10w+10 | | (10=2x)/3=7 | | 2p+-7=3p | | 2p+7=3p | | 4x+8x6=-24 | | 8x-(2x-4)=16 | | -8+1g-4=6-8g | | 7c+3=-3c+3 | | 2+9h=5+10h | | 10x-8=9x=8 | | 3^x=2x+3 | | 2x^2-5x-7500=0 | | 2y+140=360 | | 3c-2(c-2)=6 | | x^2+(1.6*x)^2=0.6^2 | | 2x/3-1/2=1/4 | | x+9÷15=0 | | 2,3b+1,4b-4,2=2,1+1,6b | | 1/2(3y+5)=2/3(2y-1) | | 5x-45=40 | | 5y(7+y)-3y-5=0 | | 0.375x=77 | | 7(x—4)=28 | | 2t+8=-4(8-3t) | | 2-4x=2(3-3(x+1) | | 2-4x=2(3-3(x+1)) | | -g+3g=-16 | | 9-2(x+4.2)=2.6 |