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 = 0
y = 0
y = 0
y in (-oo:0) U (0:+oo)
5*y = 250/y // - 250/y
5*y-(250/y) = 0
5*y-250*y^-1 = 0
5*y^1-250*y^-1 = 0
(5*y^2-250*y^0)/(y^1) = 0 // * y^2
y^1*(5*y^2-250*y^0) = 0
y^1
5*y^2-250 = 0
5*y^2-250 = 0
DELTA = 0^2-(-250*4*5)
DELTA = 5000
DELTA > 0
y = (5000^(1/2)+0)/(2*5) or y = (0-5000^(1/2))/(2*5)
y = 5*2^(1/2) or y = -5*2^(1/2)
y in { -5*2^(1/2), 5*2^(1/2)}
y in { -5*2^(1/2), 5*2^(1/2) }
| x^(2-5)=1/16 | | 2/3x-1/5=x/6-1/10 | | 51-19=4(x-5) | | (7a-15)+(9a+25)=90 | | 1.5(r+2)=-1.5(r+10) | | x+18+3x=-23-3x-29 | | 1.5(r+2)=1.5(r+10) | | -1(8x-6y-7)= | | 42.80=9g+3.65 | | 21+0.35x=20.05 | | -5(-2x)= | | 3-8x/3-7-x/2=x/3 | | 2/3*3.14*3.8*3.8*3.8 | | 32x1/6 | | w+4.14=6.91 | | 5(5y-9)-(8y+8)= | | 32*1/6 | | u+4.11=8.89 | | 64y=9(7y+27) | | -5(5/2) | | (x^2)/(.211-x)=1.8 | | 10x^3-25x^2y^2+10xy^3=0 | | 12n^2+28n+20=4 | | 2ln(2x+8)=14 | | 7-3f=2-5f | | 3a(a-5)= | | (x^(3)*x^(4))^2a/(x^5)^3=x^13 | | 1/4x=1.2 | | 7x=800 | | 3x+5y=85 | | 4q+5=q-7 | | 10x-3x=77 |