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)
5/x-1 = (9/2)*x // - (9/2)*x
5/x-((9/2)*x)-1 = 0
(-9/2)*x+5/x-1 = 0
5*x^-1-9/2*x^1-1*x^0 = 0
(5*x^0-9/2*x^2-1*x^1)/(x^1) = 0 // * x^2
x^1*(5*x^0-9/2*x^2-1*x^1) = 0
x^1
(-9/2)*x^2-x+5 = 0
(-9/2)*x^2-x+5 = 0
DELTA = (-1)^2-(4*5*(-9/2))
DELTA = 91
DELTA > 0
x = (91^(1/2)+1)/(2*(-9/2)) or x = (1-91^(1/2))/(2*(-9/2))
x = (91^(1/2)+1)/(-9) or x = (1-91^(1/2))/(-9)
x in { (91^(1/2)+1)/(-9), (1-91^(1/2))/(-9)}
x in { (91^(1/2)+1)/(-9), (1-91^(1/2))/(-9) }
| 3(2+a)=a | | x^2-30-x= | | -5x^2-5x-7=0 | | 2+2.8=3.5897 | | 64=100-x^2 | | 2x^2-21x=40 | | 2x-5*2+x=54 | | 4/3u-8/5=-3/2 | | -(3+8p)-5p=33-4p | | 9-(2x-9)=3-3x | | 9+19=20 | | (6^8y^-6)/(18xy) | | 4t=60 | | (x+.07x)+.15(x+.07x)=27.00 | | -7x^2+x=8 | | 19(x-15)=180 | | 3p-0.8=4.6 | | 33/x=18/42 | | 8f+f=6 | | log(2x+1)=log(x-3)+(x+5) | | =cos^4x | | (6c^5+7c^2-3)-(9c^5-5c^2+15)= | | 9x^2+x=8 | | 5q-5=20 | | 8x^2-12=-29x | | -1/2(2)-4= | | -3x^2+624x-4800=0 | | 2+ln(x-4)=4 | | -12/3*4/5 | | 5(x-2)+-9=-7(1-x) | | 5+(-3)+(-5)=x | | 3b=3+4(-7+5b) |