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-(5*x) = 0
2*x^2-(5*x) = 0
2*x^2-(5*x) = 0
2*x^2-5*x = 0
2*x^2-5*x = 0
DELTA = (-5)^2-(0*2*4)
DELTA = 25
DELTA > 0
x = (25^(1/2)+5)/(2*2) or x = (5-25^(1/2))/(2*2)
x = 5/2 or x = 0
x in (-oo:0) U (0:5/2) U (5/2:+oo)
(11*x)/(2*x^2-(5*x)) = 0
(11*x)/(2*x^2-5*x) = 0
2*x^2-5*x = 0
x*(2*x-5) = 0
2*x-5 = 0 // + 5
2*x = 5 // : 2
x = 5/2
x*(x-5/2) = 0
(11*x)/(x*(x-5/2)) = 0
11*x = 0 // : 11
x = 0
x in { 0}
x belongs to the empty set
| 5(1+4m)=-13+2m | | 9(8m-7)-3(10m+4)=9 | | -3x-18=10 | | 11x/2x^2-5x | | -3(-n+2)+n=10 | | 18b-9b= | | y=-19+-5x | | https://lh5.googleusercontent.com/E8SOFXNwhUpOMAJ_e5LjsTb0o7O3gBE0YxwVRBod1TCcDQmsrunYE1MUudpW1TQu02XG6ZUArg=w740 | | 115=5(2+7n) | | N/5-6=-13 | | 8x-6=5(x-4) | | 3x-9y-7x+15y= | | 21=dc+e | | 5(4x-2)=-10(-2x-1) | | 10+4w=26 | | -5k+8(8k-3)=35 | | 7x-45= | | -3(x-1)=8x-12 | | 3x+5-13x=5 | | -3x-6(-x-6)=66 | | 3x^2+xy-2y^2-9=0 | | 2(r+4)+6r=72 | | 330=-6(1-8r) | | 8x-19=-4 | | 2x+5x-111=-46 | | -3x-6(-x-6)=56 | | -8+8(1+2a)=-48 | | 6-8n=2-5n | | -4x+2+x=7+2(x+10) | | 8-2x-11=x+21+9x | | 12-5a=2 | | 8(x-1)+3(6-3x)=-2(x-3)+7 |