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)
x-(2/x)-y-2-2 = 0
x-2*x^-1-y-2-2 = 0
1*x^1-2*x^-1-4*x^0 = 0
(1*x^2-4*x^1-2*x^0)/(x^1) = 0 // * x^2
x^1*(1*x^2-4*x^1-2*x^0) = 0
x^1
x^2-4*x-2 = 0
x^2-4*x-2 = 0
DELTA = (-4)^2-(-2*1*4)
DELTA = 24
DELTA > 0
x = (24^(1/2)+4)/(1*2) or x = (4-24^(1/2))/(1*2)
x = (2*6^(1/2)+4)/2 or x = (4-2*6^(1/2))/2
x in { (4-2*6^(1/2))/2, (2*6^(1/2)+4)/2}
x in { (4-2*6^(1/2))/2, (2*6^(1/2)+4)/2 }
| -5x^2+30x+10=30 | | 2(2n+3)=12 | | -3(p-8)=6p+24 | | 3(2+2x)=5(x-4) | | (3a^2+2a+8)+(5a^2-a)=8a^2+1a+8 | | 2log(4)(x+1)+log(4)(x-2)=2 | | 3sen^2+4cosx=0 | | 6x+3y=52 | | 5(-2x+2)=-3(6x+9)+7x | | 7x+5x-3=10-x | | 7x^2=-5x+2 | | ln(3x)=3 | | (5x^-7/6y^-7)^-2 | | x^3-9x^2-24x+31=0 | | y+x=-15 | | (5x^-7/6y-7)^-2 | | 3y=-4x-18 | | 3+6j=7j | | 10x^2=120x | | 10x+3y=49 | | 15b^2+56b+49=0 | | m/3-2=-6 | | 3(3y-2)+13-2y=56 | | 2tanx-3cotx=1 | | 15-4t= | | 9+(-3ln+lnx)=0 | | 10m(m+4)=7m-20 | | (5z-2)(8z-z)=0 | | 3.3z-2.3z+.4=-7.2 | | (x+6)*(2x-3)=0 | | 10=4x+7x+10 | | (x-5)(10x^2+21x+9)=0 |