If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( a )
a = 0
2*a < 0
a = 0
a = 0
2*a < 0
2*a < 0
2*a+0 < 0 // - 0
2*a < 0 // : 2
a < 0/2
a < 0
a in (0:+oo)
(6/a)*(2*a)^(3/2) = 0
6*2^(3/2)*a^(1/2) = 0 // : 6*2^(3/2)
a^(1/2) = 0
a = 0
a in { 0}
a belongs to the empty set
| N/81=3/27 | | r^2=12-11r | | Y=6x+2-3x | | (2x^2-6x)/6x^2 | | 8(-6-5v)=5v+3 | | (2x^6-6x)/6x^2 | | 2(7-8x)=-30-2x | | 2(7-8x)=-30-2 | | -4(5n+3)=188 | | X^2=-1+2x | | 10-3(5-4y)=15+40 | | ((10sin(x)/2×)2× | | 1.3x-3.7+x-2.9= | | 10x+1000=10x-1000 | | 2x+11=3x-3-3-8x | | 5(2r-4)=10 | | 7x-42=-28 | | f(-2)=12x^2-5x+7 | | X-4=-5x-16 | | 7x-42=28 | | 5x+14x=x | | B^2+4b=-4 | | 53x+83x-43=98+x | | -4(x+2)-3x=3(2x+11)-158 | | (2x^-3y/2^-4)^4 | | 2(3x+7)=24 | | (9x-2)(5x-1)= | | Y-1.7=6.5 | | B^2-6=0 | | 4y-2xy-4x=4 | | 3x-12=7x+24 | | f-60/5=6 |