If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( h )
h = 0
h = 0
h = 0
h in (-oo:0) U (0:+oo)
84/h = 12 // - 12
84/h-12 = 0
84*h^-1 = 12 // : 84
h^-1 = 1/7
-1 < 0
1/(h^1) = 1/7 // * h^1
1 = 1/7*h^1 // : 1/7
7 = h^1
h = 7
h = 7
| 2(3x-9)(x-4)=0 | | 21p-p^3=24 | | F(X)=3x/4x-16 | | a^2+100-20= | | w(3w-8)= | | 2g+30=202 | | (3a^1/2b^-2)^-3 | | 4(x-6)-6(x-4)=x+2-(x-10) | | 15xy/35yz | | 4d+18.75=26.55 | | 3(x+(x+2)+(x+4))=10(x+2)-6 | | -12=5n+7 | | 6+37t-16t^2=h | | (x^4/3c^5)^-2 | | 3(3x-2)-2(4x-5)=12 | | 9x+4=10x | | 13y-2=17y+10 | | 3/root3 | | 11x-(2x-7)=16 | | 8(u+5+5v)= | | 45/7y=15/14 | | 88(u+5+5v)= | | x^2(x^2-16)=0 | | 3x+4x+13x-30=970 | | (x+5)*2=36 | | 13x-25=-4+26 | | x/20=90 | | x/44=90 | | 8-3x=-3x+8 | | -24x=112 | | X(14+2x)=13+(2x-3) | | 5(x-9)-7(3+6)=25 |