If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( a )
3^2*a^-4 = 0
a = 0
3^2*a^-4 = 0
3^2*a^-4 = 0
9*a^-4 = 0 // : 9
a^-4 = 0
a należy do O
a = 0
a = 0
a in (-oo:0) U (0:+oo)
((((9*a)^1)/6)^13)/(3^2*a^-4) = 0
(((9*a)/6)^13)/(3^2*a^-4) = 0
177147/8192*a^17 = 0 // : 177147/8192
a^17 = 0
a = 0
a in { 0}
a belongs to the empty set
| 1+3x+5-x=26 | | e*5x=10 | | ln*5x=10 | | in*5x=10 | | 2/4mn,5/4mn | | 4(6x-1)/12-5/4x=2(2x-1)/3-1/12 | | (2-x)*(1-x)=0 | | 8-5x=-x+20 | | 11-x/3=17 | | 1+x+x^2=108 | | 2x-4=8+6x | | 8+2Q=20-Q | | 10(2x)+4*10(x)=21 | | (3w+1)(4+w)=0 | | 10(x)+4*10=21 | | 17=20-Q | | x-(2x-3)=5-(x+1)-(2x-1) | | x=5=14-1/2x | | 17-6p=6 | | 3x^2-2xy+3y^2+4x+4y-4=0 | | 0.25=cos^2x | | 5(x-1)+x+1=2x+4 | | 2xy+6xz= | | -12-10x=20-17x | | 3n-6=20 | | 3(x+5y)=20 | | 5n-6=-9 | | 4(f-6)= | | Y=8*sinx*dx | | 4p-8q+2-5p+8q-5= | | 444/16 | | 3b-6=b |