7/(y^2-y-2)=1/(y-2)-2/(y+1)

Simple and best practice solution for 7/(y^2-y-2)=1/(y-2)-2/(y+1) 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 7/(y^2-y-2)=1/(y-2)-2/(y+1) equation: 


D( y )

y^2-y-2 = 0

y+1 = 0

y-2 = 0

y^2-y-2 = 0

y^2-y-2 = 0

y^2-y-2 = 0

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

DELTA = 9

DELTA > 0

y = (9^(1/2)+1)/(1*2) or y = (1-9^(1/2))/(1*2)

y = 2 or y = -1

y+1 = 0

y+1 = 0

y+1 = 0 // - 1

y = -1

y-2 = 0

y-2 = 0

y-2 = 0 // + 2

y = 2

y in (-oo:-1) U (-1:2) U (2:+oo)

7/(y^2-y-2) = 1/(y-2)-(2/(y+1)) // - 1/(y-2)-(2/(y+1))

7/(y^2-y-2)-(1/(y-2))+2/(y+1) = 0

7/(y^2-y-2)-(y-2)^-1+2/(y+1) = 0

7/(y^2-y-2)-1/(y-2)+2/(y+1) = 0

y^2-y-2 = 0

y^2-y-2 = 0

y^2-y-2 = 0

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

DELTA = 9

DELTA > 0

y = (9^(1/2)+1)/(1*2) or y = (1-9^(1/2))/(1*2)

y = 2 or y = -1

(y+1)*(y-2) = 0

7/((y+1)*(y-2))-1/(y-2)+2/(y+1) = 0

7/((y+1)*(y-2))+(-1*(y+1))/((y+1)*(y-2))+(2*(y-2))/((y+1)*(y-2)) = 0

2*(y-2)-1*(y+1)+7 = 0

2*y-y-4+6 = 0

y+2 = 0

(y+2)/((y+1)*(y-2)) = 0

(y+2)/((y+1)*(y-2)) = 0 // * (y+1)*(y-2)

y+2 = 0

y+2 = 0 // - 2

y = -2

y = -2

See similar equations:

| X+(1/x)=(13/6) | | 2x/2=100/2 | | -2(a-3b-6c)= | | 0.5(2b-3)-0.1=0.4(6+2b) | | 5x-9=6x-1 | | x+x-15+5=85+15 | | 3g=13g-140 | | -5y-8=12 | | 0.5-0.05= | | x=80000+0.2y | | 3/5(x+3)=1/6 | | 176-6x=21x+17 | | 0.05-0.5= | | -3(v+3)=-8v-29 | | 8x+9=x+5 | | 2(5x-3)=3-(5+2x) | | 12.50+1.50+1.50= | | 4/3(21) | | 4/3x21 | | 2[3d+7]=5+6d | | x-28=24 | | 8[g-3]=24 | | 2/9x45 | | (x-2)-(3/4) | | 40=2y+10 | | 3(2e+5)-3e=-15 | | (x-2)-(3/4)=(10-15x/6) | | 7x+6=-5x-10 | | 2=x-6 | | 6x-10=-3 | | 13+2(2b+5)=58 | | x-2=15/5 |

Equations solver categories