If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( y )
y^4 = 0
y^4 = 0
y^4 = 0
1*y^4 = 0 // : 1
y^4 = 0
y = 0
y in (-oo:0) U (0:+oo)
(y^13)/(y^4) = 0
1*y^9 = 0 // : 1
y^9 = 0
y = 0
y in { 0}
y belongs to the empty set
| 6m+9=6 | | -11-(-24)=x/12 | | 8x+x^2-60=0 | | y=-2(5)+10 | | 5-8x-5x+4= | | y=-2(0)+10 | | 1/5x-4=2(x-19/5) | | -2x+6x-9= | | x/-9=-1-(-9) | | x/-4=-2-(-7) | | y=8(1)+1 | | 10a-(3)-7a+7=-8+39 | | y=8(0)+1 | | y=8(-1)+1 | | 77x=9 | | 6(x-1.9)=9.3 | | 5p-2np= | | x=3(x+7) | | -5(2x-1)=-(11x-13) | | ln(1/x)=-1 | | d=3(x+7) | | 7x/8=1/2 | | 16x^3/10x | | (3x-6)*3=2*(5-x) | | (3x+2)(2x+3)=15x | | 2x+2(-3x+9)=-x | | 9x-7y=-22 | | 2X+7X=81-9 | | y-5(1)=7 | | 20-.10x=10-.20x | | y-5(-4)=7 | | 6-(2x+14)=2(4x-39) |