If it's not what You are looking for type in the equation solver your own equation and let us solve it.
t in (-oo:+oo)
50-((9.8*t^2)/2) = 0
50-4.9*t^2 = 0
-4.9*t^2 = -50 // : -4.9
t^2 = 10.20408163
t^2 = 10.20408163 // ^ 1/2
abs(t) = 10.20408163^(1/2)
t = 10.20408163^(1/2) or t = -10.20408163^(1/2)
t in { 10.20408163^(1/2), -10.20408163^(1/2) }
| 3x+13y=110 | | 6x+12y=8936 | | m=24-3 | | 3x^2-7=101 | | -3/7x-1/7 | | 2x+4y=422 | | Lne^4x=12 | | tan(3x+5)=4 | | x^2+12x+20=9 | | 2x^2-5=-18 | | x^2-12x-20=9 | | 7m-5-3m= | | a+2x=3-ax | | X^3-625x+300=0 | | 2/3×-3=19 | | ln(x+11)-ln(2x)=3 | | 23=x/500/17 | | 23=x/500/15 | | 5/2x=7/2x-5 | | 23=x/500/10 | | 6x^2-4=128 | | 3(b-2)=24 | | 2(b+2)=40 | | Y=500(20)x | | 1/2(6-3x)=25/6 | | 2(b+4)=16 | | R(4r-5)=0 | | 6=(2x)/(0.25-x) | | x+3x+5=33 | | 0.5x=6.25 | | .48x=47 | | 7x=8-2(2x-3) |