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^2)/16 <= 0
(x^2)/16 <= 0
(x^2)/16 <= 0
1/16*x^2 <= 0
1/16*x^2 <= 0 // : 1/16
x^2 <= 0/1/16
x^2 <= 0
x in <0:0>
x in (-oo:0) U (0:+oo)
ln((x^2)/16) = 0
ln((x^2)/16) = ln(e^0)
(x^2)/16 = e^0
(x^2)/16-e^0 = 0
1/16*x^2 = 1 // : 1/16
x^2 = 16
x^2 = 16 // ^ 1/2
abs(x) = 4
x = 4 or x = -4
x in { 4, -4 }
| (2x^3)+(24x)=0 | | -5/8x-6-3 | | 45=x+10 | | 10(x+11)=-2(8-x) | | 6=12x-2x | | 18c-2=64 | | 4x-10+5x=21 | | 43=(6(x-1))+31 | | 8/x=16/32 | | 9x+3x+3=63 | | 1/7x-4=10 | | 25b^2-16b^2= | | x^-2=4/9 | | 11x+2y=-6 | | (1,-2),m=-6/5 | | ln*p=-5 | | lnp=-5 | | 7x-3y=-11 | | 8x-29=5x-25 | | 3(3n-5)=4(n+1) | | 12m^2-m-6= | | 4/25x^-y^2 | | 40x^2+25=-67x-3 | | x+5.5x+2=0 | | F(x)=cos(x^2) | | 36m^2-25/49 | | n/3=1/4 | | k-15=3-2k | | 1.38629+ln*x=1.94591+ln*(2x-4) | | x-1/3=2x+5/7 | | 6+8x=3+5x | | 6d^2+d-2= |