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 = 0
x = 0
x in (-oo:0) U (0:+oo)
(1/5)*x^(-4/5) = (-4/5)*x^(-9/5) // - (-4/5)*x^(-9/5)
(1/5)*x^(-4/5)-((-4/5)*x^(-9/5)) = 0
(1/5)*x^(-4/5)+(4/5)*x^(-9/5) = 0
1/5*x^(-4/5)+4/5*x^(-9/5) = 0
1/5*x^(-4/5)*(4*x^-1+1) = 0
4*x^-1 = -1 // : 4
x^-1 = -1/4
-1 < 0
1/(x^1) = -1/4 // * x^1
1 = -1/4*x^1 // : -1/4
-4 = x^1
x = -4
1/(5*x^(4/5)) = 0
1/5*x^(-4/5) = 0 // : 1/5
x^(-4/5) = 0
x należy do O
x = -4
| 15m+12= | | 8/1*2/7 | | 6(5-n)=4x | | 9m+12= | | -7y-10=-8y | | 6x-(x-1)=21 | | A=54(0.5)^2/5.7 | | 1=-2A-5B-9C | | 9x-2=2x+61 | | 8.25/15 | | x=-2A-5B-9C | | 2x+19=7x+19 | | -7-8n=-9n | | 20x+13-12=43 | | f(19)=6x-5 | | 13/10x=19-1/5x | | an=-12+7n | | 10*x=9*x+1000 | | 7v=4+8v | | 28=t | | y=(m-n)/2/5 | | 9(x+9)=7+9x | | -20=16.9t-4.9t^2 | | 24x+6=13x | | 245=60-y | | 12r+1=11 | | 3b-2=6-b | | 4.33= | | 33.75/4 | | -37x=-19 | | -4y=5x-4 | | 0=-(-4x-8y+16) |