If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( m )
m = 0
m = 0
m = 0
m in (-oo:0) U (0:+oo)
5/m = 25/2 // - 25/2
5/m-(25/2) = 0
5/m-25/2 = 0
5*m^-1 = 25/2 // : 5
m^-1 = 5/2
-1 < 0
1/(m^1) = 5/2 // * m^1
1 = 5/2*m^1 // : 5/2
2/5 = m^1
m = 2/5
m = 2/5
| (x+2)(x+5)=x*x+3*3 | | 7+9x+=-25+x | | (9x-28)=180 | | -6x+4=5x-40 | | 5.41x+21.64=43.28 | | 4x^5y^5-8x^4y^4+x^3y^3= | | 3x+22=8x-75.5 | | (9x-28)+(15x+14)=180 | | 10-7x-5x+6= | | 3-4x=-9x-2 | | A(x-3)=b | | 9+12x+12x+2x+2x+x= | | 3.62x+28.96=57.92 | | i+3b+(3a-b)i=6+6i | | 1/4x^2-9=0 | | 3x-34=2x+17 | | 5+6x+18=4x-4+7 | | 5+6x+18=4x-4+17 | | (x-3)(x-4)=27 | | 2.11x+21.1=42.2 | | 3(2a+3b)+2(a+2b)= | | 30/7x11/5 | | -5y(y-9)(3y+2)=0 | | A(x+a)=b | | y/4-7=9 | | 7x+0.5=56.5 | | http://y/4-7=9 | | 5.54x+36=30.6916+6x | | x^3+8x^2-32x-60=0 | | f(x)=800(1.09)5x | | 6r^2-37r+45=0 | | 11x-7=14x-20 |