If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2x^2-12x+34=0
a = 2; b = -12; c = +34;
Δ = b2-4ac
Δ = -122-4·2·34
Δ = -128
Delta is less than zero, so there is no solution for the equation
| 2x+4x=15-3 | | 75-x=3x+15 | | 2(3x-4)-5×9x=7 | | u/27=11 | | 2(3x-4)-9x=7 | | 26r=520 | | j/32=-18 | | -18y=-882 | | 330=30s | | 330=20s | | 23p=874 | | ((2a-7)÷4)+7=(a÷3) | | 4(3x-5)=15-(3x+17) | | 26=v+22 | | q+27=89 | | 39=r-29 | | 6x^2+10x-84=0 | | w-4=13 | | 2x-7x+3x=20 | | 23+x+4+x=137 | | x+4 5=9 10 | | 6-(3x+10)+4(2-x)=14 | | p+51=911 | | b+190=704 | | 4+3x-2x=10+8 | | h-187=209 | | h-187=208 | | 601=f+49 | | n+7=993 | | w-209=340 | | 7(x-2)-(3x+4)=2 | | v-84=88 |