If it's not what You are looking for type in the equation solver your own equation and let us solve it.
z^2+7z+100=0
a = 1; b = 7; c = +100;
Δ = b2-4ac
Δ = 72-4·1·100
Δ = -351
Delta is less than zero, so there is no solution for the equation
| -12x-2=x+11 | | 5x=14–4x | | 36+4x=18+x | | 2(x-3)+6=5+3(2x-7) | | x/8+8=-4 | | 8y^2=32/9 | | 3-4x=O | | 3-74x=O | | (100+93+97+x)/4=97.25 | | 100+93+97+x=97.25 | | 4x+3(x+2)=3x-2(3x+7) | | 5x-2(3x+7)=0 | | 3n-2=26 | | 4x+4=x-5/3 | | 100x-15x=255 | | -4r+5=-7 | | 5+3x+7+6x=5x-5-2x+29 | | (10/q)+(5q)-(q^2)=0 | | 10/q+5q-q^2=0 | | 4x+4/3=x-5 | | 6y-8=3y+4 | | 6=-1/2x+2.5 | | 6=x-1/2+2.5 | | 159=29+2x | | q/3+8=3 | | 0=1+2x-3x^2 | | 1.5x+2+2.5x-0.5=4x-1.5-3x | | 1.5x+2+2.5x-0.5=4x-1.5-3x | | 451+x=84564845 | | 2x+15+85+(x-20)=180 | | 139+13x=149,5+11,5x | | 2y+5=7- |