If it's not what You are looking for type in the equation solver your own equation and let us solve it.
h in (-oo:+oo)
(1/25)*h^2-16 = 0
1/25*h^2 = 16 // : 1/25
h^2 = 400
h^2 = 400 // ^ 1/2
abs(h) = 20
h = 20 or h = -20
h in { 20, -20 }
| 0.08-0.02(x+1)=0.04(3-x) | | -3.3-4x-2.9-x=-4x+4.6 | | k^2-49/64=0 | | x(-1)= | | 50y=8+4.35 | | -7.4-5y-5.3-3y=-7y-7.3 | | 8x-21=-30 | | 3(w+7)=-4w-35 | | n^2-9/25=0 | | 9z-16-2z+2=0 | | 5x-x=-15 | | y=3x^2-3 | | (4*1)-(7*-8)=12 | | 4y-7=-31 | | 3z+10-z=6+Z+z | | w/2+7+12 | | 1/4z+3/4z=0 | | 21=2(4a) | | 15lnx=30 | | 2x+4x=5x+5 | | -5y+3(y+6)=24 | | 6z-5=7z-2z | | M=2p+3p | | 2(x+3)-3(x-2)=6x+3 | | S=7.69+10.26 | | S=7.69-10.26 | | 4x-0.5=5x | | 1+b/5+2 | | 5z+1=6z | | 4+3q=7 | | 1/3x+4=-2/3x-1 | | 4(n+3)*5=n-3 |