(x^2-2x-99)/(x^2-9)

Simple and best practice solution for (x^2-2x-99)/(x^2-9) 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 (x^2-2x-99)/(x^2-9) equation: 


D( x )

x^2-9 = 0

x^2-9 = 0

x^2-9 = 0

1*x^2 = 9 // : 1

x^2 = 9

x^2 = 9 // ^ 1/2

abs(x) = 3

x = 3 or x = -3

x in (-oo:-3) U (-3:3) U (3:+oo)

(x^2-(2*x)-99)/(x^2-9) = 0

(x^2-2*x-99)/(x^2-9) = 0

x^2-2*x-99 = 0

x^2-2*x-99 = 0

DELTA = (-2)^2-(-99*1*4)

DELTA = 400

DELTA > 0

x = (400^(1/2)+2)/(1*2) or x = (2-400^(1/2))/(1*2)

x = 11 or x = -9

(x+9)*(x-11) = 0

((x+9)*(x-11))/(x^2-9) = 0

( x+9 )

x+9 = 0 // - 9

x = -9

( x-11 )

x-11 = 0 // + 11

x = 11

x in { -9, 11 }

See similar equations:

| 2/3b=11 | | 19+x=-20 | | -1-8r=-3(4r-5) | | 12f+24= | | 300.45/15 | | D+16=110 | | 3(5x-10)=x | | 12f-18=78 | | h(x)=x^2+6x | | 6x+18=96 | | -(3x-7)=4x+6 | | 3x-22=3x+10 | | n+23=25 | | 16/9=7/x | | a=k/u | | 14=0.5(9.8)t^2 | | 5x+13+5x-9=180 | | 14cm=0.5(9.8m)t^2 | | 9x+184=7+156 | | 2.5f-20=-10 | | 3/5x*=6/7 | | 3x+-9=3(-3+2x) | | 2.5f-2p=-10 | | 56/35 | | 4x+13+y=180 | | -1/4x-12=0 | | 3d+5d-9d= | | 6w+2=9+14 | | 3x+4=42 | | 0.25-(400/x^2)=0 | | 14/92 | | -5x-2x(x+2)=81 |

Equations solver categories