If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
2*x^2 = 0
2*x^2 = 0
2*x^2 = 0
2*x^2 = 0 // : 2
x^2 = 0
x = 0
x in (-oo:0) U (0:+oo)
(4*x^6-(14*x^5))/(2*x^2) = 0
(4*x^6-14*x^5)/(2*x^2) = 0
4*x^6-14*x^5 = 0
2*x^5*(2*x-7) = 0
2*x-7 = 0 // + 7
2*x = 7 // : 2
x = 7/2
2*x^5*(x-7/2) = 0
(2*x^5*(x-7/2))/(2*x^2) = 0
( 2*x^5 )
2*x^5 = 0 // : 2
x^5 = 0
x = 0
( x-7/2 )
x-7/2 = 0 // + 7/2
x = 7/2
x in { 0}
x = 7/2
| (4x^6-14x^5)/(2x^2)] | | X10/x2 | | F(x)=3.5in(2x-5) | | K=99-4n | | 7sin(2x)=5 | | -7h-3+3.5=26.5 | | 9c-(c+24)=-8 | | 12y=y^3-11y^2 | | x+3=x-2*2 | | 3x-2(1.5x-1)=1 | | 12-5n= | | g(x)=x^4-6x-8 | | 3x+4-2x-2=7 | | 3n+7+19=8 | | 180=20x+16x | | 2x+6x-2=6x | | y=(2x-1)(x^2-x+3) | | 10x-13x+9-5x=-15 | | -2.5d+7-3d=26.5 | | x^2-6=8 | | 110-x=289 | | y=(25x-.5x^2)-(100+5x) | | 180=6x+3x+72 | | g(x)=x^3+2x^2-3x+1 | | 14[-9-4m]=42 | | -21.5=-8(2.5a+9.5) | | g(x)=x^5+2x^2-3x+1 | | 5e+8f=96 | | 120+5x=180 | | F(x)=65(1.64)x | | 120/3/5= | | 6g-2=7 |