If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( v )
(2*v)^4 = 0
(2*v)^4 = 0
(2*v)^4 = 0
16*v^4 = 0 // : 16
v^4 = 0
v = 0
v in (-oo:0) U (0:+oo)
((5*v^2)^3)/((2*v)^4) = 0
125/16*v^2 = 0 // : 125/16
v^2 = 0
v = 0
v in { 0}
v belongs to the empty set
| 6sinx=sinx+3 | | 1/√7-2 | | 3.2+0.2x=6.8 | | 1/(х-1)(х-5)0 | | x^3+3x^2-9x+2=0 | | (x-7)2+(x)2=(13)2 | | y=x^3+3x^2-9x+2 | | 2(9n-1)+7(n-6)=-60 | | 7*x*(x^2+y^2)=0 | | (7x-6y)(7x+6y)=0 | | 5-3(x+2)=-13 | | w^2+6w-216=0 | | (6/5)x(4/5) | | 14x*4=0.00000000000000000000000000000000000000000000000000001 | | a=09(a)-(-2333333333333333333333) | | a=09(a)--2 | | a=09(a) | | a=09(0) | | 24b^2-4b-60=0 | | x^2*2+4x=70 | | x^2*2+2x=35 | | 2.8(x+1.5)=4.2(x-2) | | 0.8x-6=3.2x+3.6 | | 3*2+y=8 | | 69-3x=13-10x | | 4(4x+1)=3(5x+3) | | 2*2+y=8 | | 8x-7x-16-3x=-21 | | 8x+44=28 | | 5x+8-2x+9x=-16 | | 20x^2-64x-180= | | 1/11•22-1= |