If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4.9x^2+20x+300=0
a = 4.9; b = 20; c = +300;
Δ = b2-4ac
Δ = 202-4·4.9·300
Δ = -5480
Delta is less than zero, so there is no solution for the equation
| 6c+14=4c=4 | | 6c=14 | | 47.59a+6a+12.73=52.94+13.2a | | 0=-0.1x2+2.4x+8.1 | | 4s=116 | | 3(2x-3)-2(5x+4)=5 | | 47.59a+12.73=52.94+13.2a | | 15+24x=75+14x | | -5(5x+-8)=-85 | | 5x÷9-11=51 | | 4/y+3/y=14 | | 2x+4=-19-9x | | 14b=9 | | 36=21m | | 5(6x-1)=355 | | -5(-4+3x)=110 | | 11x^2-36x-10=0 | | -4x+2=-18-6x | | 14x-2=19x-1 | | 8+3e.e=2 | | x+10=4x+16 | | 1/2x-13/15=1/6x-1 | | 2-2=6x+4x | | 6x-6+x=36 | | x/30=-24+8 | | |2x+3|+8=3 | | 133=(x-19) | | -6x+2=20-4x | | $26x-34=18$ | | (9^(2x-15))=((1/27)^4x) | | -5a=-408 | | (x+3)^2+5=0 |