If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x^2-(4*x)-5 = 0
ln(1/x)
x^2-(4*x)-5 = 0
3*x-1*x^3+0*x^2+0 = 2
(1/d)*ln((0.7225*l)/x)
| 5y+2x=17-6 | | -32+3x^2-30-36-4x-20x=-119 | | ax+5=5x+9 | | f(x)=(2x+3)(7x+2)(13x+7)(x+13) | | 3x^2-24x-98=-119 | | 5-e=12-3e | | (5*5)+7-7+2= | | x^2-10x+448=0 | | 8c^3=27 | | 20x^2+5=0 | | (20t^2+8t-1)(4t+5)=0 | | n^2+4=4 | | 4x^2-17x+16=2x+4 | | 4x^2+17x+16=2x+4 | | n(n+5)= | | x^2+y^2-8x+6y+21=0 | | 2(t-1)-3(2t-1)=3-5(3t+1) | | 3x-15=9x+11 | | S=6ab+4a^2 | | 2x+36=26+x+18 | | 5687-3158= | | 2x+36=26 | | 15x-(23-6x)-(x+12)=25 | | x^2+36x=36100 | | 0=5x-3+x-8 | | x^2+36=36100 | | 3(5-2x)=9x+9 | | 2.88=3.91+1.9x | | 8y-11=-10-12y | | X-3(2+x)=4(x-3) | | 9/25=X | | 6x=630 |