If it's not what You are looking for type in the equation solver your own equation and let us solve it.
6x^2+72=0.
a = 6; b = 0; c = +72;
Δ = b2-4ac
Δ = 02-4·6·72
Δ = -1728
Delta is less than zero, so there is no solution for the equation
| 4x+20=2x+6 | | 11(9-2x)=-1(12+11) | | 15x2=11x-2 | | x2=-91 | | -35c=25 | | 3(a-5)-4=17 | | 0.25^x=2 | | 53=(2x+1)+(5x+4)+x | | -8(w-10)+6=94 | | 55=8(n+2)-9 | | N-30=6n-100 | | 2(j-3)+7=-7 | | 50=2+5w-2w | | 13x-41=6x+15 | | 2x-10/x-1=0 | | ∠A=5x−5 | | 210000=l+6.5l | | x=5(x+96) | | 8x-48=-16 | | 5+2n=3(n-2) | | a-6=2(a-6) | | 123=(2n-9)+(3n+6)+n | | 123=(2n-9)+3n+6)+n | | 6x^-7x=20 | | |3x+18|=6 | | -1/2x+{-6}=14 | | -1/2x+-6=14 | | 19x+3*0.75x=900 | | a(0.3−1.3)+1.1+2.4(0.466666667)=0 | | x=875000*1.03^25 | | 0x+5=6x+7 | | 36x-39 = 27x+186 |