If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x^2-2.8x+1.96=0
a = 1; b = -2.8; c = +1.96;
Δ = b2-4ac
Δ = -2.82-4·1·1.96
Δ = -8.881784197E-16
Delta is less than zero, so there is no solution for the equation
| 3x2+6x=2025 | | 8b=0.2416 | | 20-2d=12 | | (180-3x)+(180-3x)+(2x+10)=180 | | 2x+2x+2x=24 | | (z+1)/(z-1)=21 | | 954=r/1.3 | | -2/15=-5/15y | | 2(z+4)=2(3z-4) | | 2w^2=72w | | 2(3x+4)=68 | | 9x+20=4x+35 | | 60s=123 | | 10t-3=7t+24 | | 10+7a=20+20a | | 126b=89 | | 3x+(5x-14)+(2x+22)=180 | | (3x-5)3x+5)=0 | | 89b=126 | | 2x+4x=6x-x+10 | | -32m-4=-5(5m-2) | | 1/2x+22=28 | | -10-y=19 | | (x+2)(10-x)=0 | | 4(2y-3=3(y+6) | | (5-2x)+(4x-13)=12 | | 3(x+4)=8(x+9) | | (3x/10)+(2x/5)=7 | | -x+4=3/2 | | 1/14(y-5)=2/7(y+7)-1/7y | | 3a+4/2=8 | | x*(0.1+19.99)=500 |