If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( t )
t+5 = 0
t+5 = 0
t+5 = 0
t+5 = 0 // - 5
t = -5
t in (-oo:-5) U (-5:+oo)
(2*t^3+t^2-(5*t)+2)/(t+5) = 0
(2*t^3+t^2-5*t+2)/(t+5) = 0
2*t^3+t^2-5*t+2 = 0
2*t^3+t^2-5*t+2 = 0
{ 1, -1, 2, -2 }
1
t = 1
2*t^3+t^2-5*t+2 = 0
1
t-1
2*t^2+3*t-2
2*t^3+t^2-5*t+2
t-1
2*t^2-2*t^3
3*t^2-5*t+2
3*t-3*t^2
2-2*t
2*t-2
0
2*t^2+3*t-2 = 0
DELTA = 3^2-(-2*2*4)
DELTA = 25
DELTA > 0
t = (25^(1/2)-3)/(2*2) or t = (-25^(1/2)-3)/(2*2)
t = 1/2 or t = -2
t in { -2, 1/2, 1}
(t+2)*(t-1/2)*(t-1) = 0
((t+2)*(t-1/2)*(t-1))/(t+5) = 0
( t+2 )
t+2 = 0 // - 2
t = -2
( t-1/2 )
t-1/2 = 0 // + 1/2
t = 1/2
( t-1 )
t-1 = 0 // + 1
t = 1
t in { -2, 1/2, 1 }
| (2+y)(5y-3)=0 | | -7-9(-3)/-2-6(-7) | | -3(v-8)(-v+5)=0 | | (5u+1)(5+u)=0 | | 3x+3-2x-8=0 | | (y+2)(y-5)=0 | | (4z-1)(7-z)=0 | | 75/15 | | -0.01x-0.34=2 | | 5w(w-9)(w+4)=0 | | 3-9(-5)/1-8(-9) | | 20a+16=16a | | 2(x-3)=x+10 | | -0.01x-0.34=8 | | 2y+23=17 | | -4(v+9)(-v-1)=0 | | 2(3x+3)+7=8x-5 | | 21-5= | | 0=x^2+10x+50 | | (5w+4)(9-w)=0 | | 9.1-6.96/2.9+5.8 | | 3x+2(x-1)=9 | | X^4-9z^2+18=0 | | 15w=12-9w | | (5/2+1/8)2-(1/4+1/8) | | 6a+7-1a=18 | | 2x^2-7=14 | | 7x+7-6=10 | | 1/4*1/5+1/2*1/10 | | 4+6y=46 | | 57.99+0.11x=10 | | 2x^2+5-10=y |