If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4x^2+16x+64=0
a = 4; b = 16; c = +64;
Δ = b2-4ac
Δ = 162-4·4·64
Δ = -768
Delta is less than zero, so there is no solution for the equation
| x2+11x+7=0 | | V-12=u | | h+16=65 | | 4.81=2m—3.57 | | 17+5x=2(−x+3)−17 | | 5=n−76/4 | | 2(y−6)+3=4y−72(y−6)+3=4y−7 | | 3+2e=5e-11 | | 3.50x+19=4.75x+14 | | (3x-6)=2 | | 14+7f=98 | | 14=c+15 | | 10+3h=31 | | -2+-u=2 | | 3-6k=-45 | | 2x+2x+3=144 | | 3. 2x+2x+3=144 | | 3(x+1)-5=5x+4 | | 10+7y+4=0 | | 2x2+2=106 | | 40000=300+1200m | | 3d-3=13-d | | 5x17=137 | | 3=3b-9 | | 10000=800+8a | | 14x+1=53 | | 127=51x-39 | | (x^2-1)(-2x+¹3)(x^2/2-5)(1/3-2x/7)=0 | | 53=14x+1 | | 127=51-39x | | 81=x+7+52 | | 11+2y=31 |