If it's not what You are looking for type in the equation solver your own equation and let us solve it.
100x^2+300=0
a = 100; b = 0; c = +300;
Δ = b2-4ac
Δ = 02-4·100·300
Δ = -120000
Delta is less than zero, so there is no solution for the equation
| 2720+175.75x=5707.75 | | -4(r)=-39 | | 7w-18=6w | | 8x-12x+26=14x+23 | | 13v=2-29v | | 15x=110x+10x | | x−2*3=−6 | | 2x-1=5x42 | | 9=p+13/3 | | -3(-1+4x)=-45 | | -309=-9x-3 | | x-(-10)=7 | | K/4=k/9+4= | | d/100+600+d/8=720 | | 60(x-1.5)=90x | | 3(4+7x)+4=13x-8 | | x−3x2=−6 | | j/9+27=28 | | 2(2+x)=12-5x | | 9(5y+3)=-3(-15y+3) | | -4+7x-3x=+17 | | −4(x–9)=32 | | 10(2x-3/4)=6(3-2x) | | 1.49-3.1s=-5.2s-17.83 | | 2+x2=51 | | 4m+15=63 | | 191/2+15m=11m | | (2x+20)+(4x+10)=180 | | 7-8g=-6g-7 | | -63=-5/2x-1/2 | | 0.5(x–4)=−8 | | 15d+105=15d-16 |