If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( p )
p = 0
p-3 = 0
p = 0
p = 0
p-3 = 0
p-3 = 0
p-3 = 0 // + 3
p = 3
p in (-oo:0) U (0:3) U (3:+oo)
4/(p-3)-(2/p) = 0
4/(p-3)-2*p^-1 = 0
4/(p-3)-2/p = 0
(4*p)/(p*(p-3))+(-2*(p-3))/(p*(p-3)) = 0
4*p-2*(p-3) = 0
2*p+6 = 0
(2*p+6)/(p*(p-3)) = 0
(2*p+6)/(p*(p-3)) = 0 // * p*(p-3)
2*p+6 = 0
2*p+6 = 0 // - 6
2*p = -6 // : 2
p = -6/2
p = -3
p = -3
| (5u+2x)(3u-x-5)= | | -5+2p=10-p | | 500-2p=-100+4p | | 2r=7r^2 | | 4X+5X+3+5X+1=180 | | 16/32 | | p=100+3Q | | 10y-14(9y-3)=506 | | p=200-Q | | 7/(x^2-5x)-2/(x+5)=(4/x) | | 2x=25-3(x) | | X^4-2x^3+4x^2+2x-5=0 | | x-8.3=-3.5 | | 36y=-288 | | 6.2x+3=5.2x | | 1/5=r/50 | | 8n^2=9n | | 1/5=50/r | | 1/24=h/72 | | 2(-17x)=-14 | | 8x-3y=13 | | 14(9+11x)-2(2+11x)=650 | | 8x+-4=2(4x+-2) | | 3+(x/5)=8 | | 8/3X-3Y=3 | | w^2+7w-144=0 | | (2*x-3)*(x+1)+2*(-x)*(x+1)+2*5*x=0 | | a-8/12=15/3 | | 10.8-0.2x= | | 2*x^2-2*x^2+9*x-2*x-3=0 | | 7/13=4x+9/6 | | v=100*28*30 |