If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3x^2+39=0
a = 3; b = 0; c = +39;
Δ = b2-4ac
Δ = 02-4·3·39
Δ = -468
Delta is less than zero, so there is no solution for the equation
| 7x/5=25 | | 8n+32=16n | | u-8=−2 | | X^2=-y^2 | | 6(5g+2(=30g | | x2-4=-11 | | -×+11=-2.4+x | | 5x-4+2x+2x=3 | | 6z^2-13z=0 | | 3^x+1=1/9 | | 2t/3=+5t/12=26 | | a(2a-4)+9;a=3 | | +x3.x-1=33 | | 8w+14=42 | | 14+3=2+9x | | 10(s-7)=-93 | | 3(3s+4)=120 | | (3x-10)+(8x-30)=180 | | -1/2x+7=20/3 | | -7(2t+8)=-14 | | a÷0.4=75 | | 10(s-4)=96 | | 3(5x-2)+30/100×x=60 | | 3x-14=8x+3 | | (3/x+16)=(1/3x) | | (2x-16)(3x+5)=0 | | 12x-5/10x+2=3/4 | | (8x-4)/2=18 | | x/6-5/3=8/6-x/6 | | 6(x+4)=8-2x | | 6(x+4)=8-2 | | 2x^2+3×+1=0 |