(r-3)/(r^2-2r-3)

Simple and best practice solution for (r-3)/(r^2-2r-3) equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for (r-3)/(r^2-2r-3) equation: 


D( r )

r^2-(2*r)-3 = 0

r^2-(2*r)-3 = 0

r^2-(2*r)-3 = 0

r^2-2*r-3 = 0

r^2-2*r-3 = 0

DELTA = (-2)^2-(-3*1*4)

DELTA = 16

DELTA > 0

r = (16^(1/2)+2)/(1*2) or r = (2-16^(1/2))/(1*2)

r = 3 or r = -1

r in (-oo:-1) U (-1:3) U (3:+oo)

(r-3)/(r^2-(2*r)-3) = 0

(r-3)/(r^2-2*r-3) = 0

r^2-2*r-3 = 0

r^2-2*r-3 = 0

DELTA = (-2)^2-(-3*1*4)

DELTA = 16

DELTA > 0

r = (16^(1/2)+2)/(1*2) or r = (2-16^(1/2))/(1*2)

r = 3 or r = -1

(r+1)*(r-3) = 0

(r-3)/((r+1)*(r-3)) = 0

r-3 = 0 // + 3

r = 3

r in { 3} 

r belongs to the empty set

See similar equations:

| x+2x+(x+20)=180 | | 3x+7y+10z=-127 | | x+2x+x+20=18 | | 42s+11-3=29 | | (mx+3m)(2mx-m)=15 | | 3.5-5=4.2 | | x^2+100=64 | | ((2x-5)/12)-((3-x)/6)=11/12 | | [10x]=-2 | | (a^2-b^2/a-b)-2b | | (x+3)m*(2x-1)m=15 | | log(y)=1.2 | | 15-t+18t=-13 | | ln(5x-1)+lnx=3 | | (8*X)+(X+X)=90000 | | y^3-3y^2-9y-18=0 | | 6m+4+17=3m-7 | | y=(14)/ln(x) | | (8*X)+(2*X)=90000 | | -3x-9y=66 | | 4m-5=2m-23 | | -9-(p/4)=5 | | 4x^2-12=4x^2-12 | | 6x+19x+-4=5(5x+4) | | [x-3]=4x-7 | | -1=y-8 | | 5(-Y+(-2))+3Y=-11 | | 8.7+n=10.4 | | -11a=-29 | | 42s+11-3=49 | | 7/9x-3=18 | | n+84=-100 |

Equations solver categories