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-3 = 0
x-3 = 0
x-3 = 0
x-3 = 0 // + 3
x = 3
x in (-oo:3) U (3:+oo)
(5*x^2-(13*x)+1)/(x-3) = 0
(5*x^2-13*x+1)/(x-3) = 0
5*x^2-13*x+1 = 0
5*x^2-13*x+1 = 0
DELTA = (-13)^2-(1*4*5)
DELTA = 149
DELTA > 0
x = (149^(1/2)+13)/(2*5) or x = (13-149^(1/2))/(2*5)
x = (149^(1/2)+13)/10 or x = (13-149^(1/2))/10
(x-((13-149^(1/2))/10))*(x-((149^(1/2)+13)/10)) = 0
((x-((13-149^(1/2))/10))*(x-((149^(1/2)+13)/10)))/(x-3) = 0
( x-((13-149^(1/2))/10) )
x-((13-149^(1/2))/10) = 0 // + (13-149^(1/2))/10
x = (13-149^(1/2))/10
( x-((149^(1/2)+13)/10) )
x-((149^(1/2)+13)/10) = 0 // + (149^(1/2)+13)/10
x = (149^(1/2)+13)/10
x in { (13-149^(1/2))/10, (149^(1/2)+13)/10 }
| (750-x)-600=3x | | 5d^2+17d-12=0 | | 9q+6q= | | 0=x^2-8x-8 | | 3a^2+8a+5=0 | | -7x+22+9x+22=14 | | 0=6x^2+7x-3 | | -4=6t-16 | | 10n^2-23np-5p^2=0 | | 0=6n^2-11n-2 | | 7+2=x | | 0=4ab+2a+6b+3 | | 10m^2+17m+6=0 | | -7w-12=-3w+20 | | x^2-2x-19=-51 | | 40w-(180/(w^2))=0 | | X^4+12x^3+36x^2=0 | | z/3-6=15 | | 24x^2-22x+4=0 | | x-7/4=-9 | | 17=4x+7 | | 5(2a-3)-2(5a+8)=0 | | 5(2a-3)-2(5a+8)= | | y/3+0.2=12 | | 1/9n-6=-7 | | 1/9n-6=-7 | | (x)/(x^2-16) | | 8=2px+q | | 2(3a-4)-3(a+1)=0 | | X+-2=y | | 3a-7=5a+6 | | 3x^2-10=-91 |