(x^2-3x-40)/(x^2+x-72)

Simple and best practice solution for (x^2-3x-40)/(x^2+x-72) 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^2-3x-40)/(x^2+x-72) equation: 


D( x )

x^2+x-72 = 0

x^2+x-72 = 0

x^2+x-72 = 0

x^2+x-72 = 0

DELTA = 1^2-(-72*1*4)

DELTA = 289

DELTA > 0

x = (289^(1/2)-1)/(1*2) or x = (-289^(1/2)-1)/(1*2)

x = 8 or x = -9

x in (-oo:-9) U (-9:8) U (8:+oo)

(x^2-(3*x)-40)/(x^2+x-72) = 0

(x^2-3*x-40)/(x^2+x-72) = 0

x^2-3*x-40 = 0

x^2-3*x-40 = 0

DELTA = (-3)^2-(-40*1*4)

DELTA = 169

DELTA > 0

x = (169^(1/2)+3)/(1*2) or x = (3-169^(1/2))/(1*2)

x = 8 or x = -5

(x+5)*(x-8) = 0

x^2+x-72 = 0

x^2+x-72 = 0

DELTA = 1^2-(-72*1*4)

DELTA = 289

DELTA > 0

x = (289^(1/2)-1)/(1*2) or x = (-289^(1/2)-1)/(1*2)

x = 8 or x = -9

(x+9)*(x-8) = 0

((x+5)*(x-8))/((x+9)*(x-8)) = 0

( x+5 )

x+5 = 0 // - 5

x = -5

( x-8 )

x-8 = 0 // + 8

x = 8

x in { 8} 

x = -5

See similar equations:

| 4.8x+58.1=17.3-8.8x | | p+2=-5 | | 3(3t+1)-5=-3 | | -3a+48+8a=2a-9a | | 7/7*z+6 | | 28/116 | | 3/5m+a=b | | 5(x-1)+17=-3(6-2x)-4x | | -(8y-6z+6)= | | 5x^2=6x+27 | | (5/x)+(1/2x)=7 | | x^4+-2x^2y^2+y^4=0 | | d-6a=-a | | 0.75x-1=-4x-2 | | 1+2y=4y-(1/3) | | 8/9x-17=-1 | | 70x+50y=450 | | 6(3t+3)-10=2 | | 2(4x+5)=11x+5-3x+5 | | 8(v+3)-2v=2(3v+1)-9 | | 0-0= | | 21h=6 | | a^-5/a^4 | | -2x-6=2x+30 | | 18x-77=(18/x) | | 5y-4=-24 | | -1/2-5x=6 | | y=1.5(3x-2)/6 | | 1/4w+30=8 | | 3(6x+7)=18x-4 | | 3b-4=22 | | 4a+8=6a-6(5-a) |

Equations solver categories