If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x = 0
x^2 = 0
x = 0
x = 0
x^2 = 0
x^2 = 0
1*x^2 = 0 // : 1
x^2 = 0
x = 0
x in (-oo:0) U (0:+oo)
7/x-((6*x)/(x^2))-36+6 = 0
7/x-6*x^-1-36+6 = 0
1*x^-1 = 30 // : 1
x^-1 = 30
-1 < 0
1/(x^1) = 30 // * x^1
1 = 30*x^1 // : 30
1/30 = x^1
x = 1/30
x = 1/30
| .66*3= | | 6*4/4= | | 3x+21/7 | | .66*2= | | 5w+8-w=6w | | 7m-2=8m+4 | | .66*3+3=y | | 32-3x=14+3x | | (2x^2-4x)/(x+1) | | 10-2x+6x=-2(-3x+1) | | 12=x/2 | | 3*27/64 | | 6-7=13 | | 4-2=9+5x | | -25-44= | | (2x+5)(5x^2-26x+5)=0 | | 11-w=170 | | 5x-3x+5whenx=2 | | 11-181= | | 2a+11.5=a^2+0.25 | | 5x-x-x=-1 | | -181+11= | | a^2+b^2=b^2 | | 6(7x+2)-(x-3)= | | 9-4(a+7)= | | 6-4(x+11)= | | 5(9x+8)-5(4x-1)= | | 2a-14= | | Xtimes-3=8 | | 8x+4=12x+1 | | 10n=6/13 | | f(x)=-6x^2+8x+3 |