If it's not what You are looking for type in the equation solver your own equation and let us solve it.
p^2-4p+8=0
a = 1; b = -4; c = +8;
Δ = b2-4ac
Δ = -42-4·1·8
Δ = -16
Delta is less than zero, so there is no solution for the equation
| 50=0+0.5*9.8*t(^) | | 50=0+0.5*9.8=t(^) | | 3/4+2x=28 | | 1=6b-7 | | -(1+8x)=3(x+7) | | 4x+6x=4(6x+4)+(-5x+8) | | 13x+5=14x-3 | | 5x+46=180 | | -6x-174=71-31x | | -1.45=x-11.1÷.76 | | -5x+2=28 | | 14x-8=9x+7 | | 17-x^2=-5 | | -m/9-1=-2 | | 5(x+6)^2-49=-4 | | (61)+(5x-15)=8x-8 | | 2x/3-1/7=x/9+1/3 | | 4(x-6)^2+22=38 | | 18n+7=31 | | 18n+6=31 | | 3x/4+x/3-2=1/2-x | | (-3/2)+x=4 | | 180=6x-280 | | -98=-7(x+7) | | 18r-14r+2+4r=10 | | 4y+4/5=21 | | 3=10x-85 | | 9x+42=44 | | (x+4)^2=4 | | 2(x+11)=-3(x+1 | | n-4-n=-4 | | 6a-6a+3a-a=12 |